A first approach to Siman 184: the 12 seifim of the Mehaber and the glosses of the Rama, vocalized Hebrew text and a fluent English translation. Why and how does one separate for one onah (a half-day) before the period? The role of the fixed veset, of the bedikah (Rambam, Rama « כל המרבה לבדוק משובחת »), of the distinction between the veset bound to days and the veset bound to a bodily change, of the exemption during pregnancy and nursing (24 months), and of the pekidah before a journey. An intimate and weighty subject: we present the sugya and the concepts, without ever ruling on a personal case.
Subject: Separating one onah before the period — vesatot, perishah, pekidah, pregnancy and nursing Source: שולחן ערוך יורה דעה סימן קפ״ד
Compilation: הרב יוסף חיים סממה DAAT · daattorah.com
📑 Study plan
1.The text of the Mehaber: the 12 seifim, by thematic groups
2.Context: where this siman fits among the laws of taharat hamishpacha
5.The Shach and the Taz: who they are, a few key entries
6.The gloss of the Rama (הגה)
7.The pregnancy and nursing exemption: why, and until when
8.Modern practical cases: perishah and tracking the veset, pekidah, pregnancy, bedikot
9.Summary and comprehension questions
1. The text of the Mehaber — the 12 seifim
Siman 184 stands at the heart of the laws of Niddah (taharat hamishpacha) and opens the great topic of the vesatot — the cycles by which a woman anticipates the arrival of her period. The central principle: when the veset is expected, one must separate for one onah (a half-day) beforehand, lest the blood come during tashmish. The Mehaber (Rabbi Yossef Karo) states the law and its cases; the Rama (Rabbi Moshe Isserles) adds his glosses (הגה) for practice. This is an intimate and weighty subject: we present the sugya and the concepts here, without ever ruling on a personal case. Let us discover the seifim by groups.
Group A — The veset, separating for one onah, and who is obligated (seifim 1-3)
Seif 1 — Most women have a veset; the fixed veset and the bedikah
Most women have a veset(that is, a fixed time, "the way of women"): to see at a known time, for example every twenty days or every thirty days. And any woman who has a fixed veset (veset kavua) — one may be with her outside the time of her veset without a bedikah (examination) before tashmish (Rambam). Gloss of the Rama: she should not even be stringent to examine herself, neither before nor after tashmish, so that his heart not misgive him to the point that he separates (שלא יהא לבו נוקפו ופורש); but outside the time of tashmish, "whoever examines more is praiseworthy" (כל המרבה לבדוק הרי זו משובחת).
The central idea: a fixed veset is a reliable presumption — as long as one is outside the expected date, there is no fear of bleeding, and the Rambam exempts one from a bedikah before tashmish. The Rama goes further: not to examine at the moment of tashmish, to preserve the couple's peace of mind. But outside that moment, examination remains a virtue — "כל המרבה לבדוק משובחת". For practice, consult your Rav or a yoetzet.
Seif 2 — At the time of the veset: separating one onah, from tashmish alone
At the time of her veset, one must separate from her for one onah (a "period": one day or one night), and only from tashmish — not from other forms of affection. If the veset is by day, one separates that entire day (even if the veset is at its end), and it is permitted from the following night; if it is at the start of the day, one separates the whole day and it is permitted the whole night before; likewise by night: one separates the whole night, permitted the day before and after. This applies whether the veset was fixed by three times or by one. Gloss of the Rama: all this applies only to the veset bound to days (התלוי בימים), not to the veset bound to a bodily change (התלוי בשינוי הגוף) (cf. Siman 189); and a woman whose veset advances or recedes by two or three days must separate two or three days before or after (cf. Siman 189).
עונה — An onah: one day OR one night. The perishah (separation) lasts only one onah: the entire day if the veset falls by day, the entire night if it falls by night. And it concerns only tashmish: other forms of affection (חיבוק ונישוק) remain permitted.
The pivot of the seif: the separation at the time of the veset is limited — a single onah, and from tashmish alone. The Rama notes an essential point: this day/night mechanism concerns only the veset bound to days (a calendar cycle); the veset bound to a bodily change (a physical symptom) follows other rules, set out in Siman 189.
Seif 3 — Only a gedolah; the ketanah and the zekenah
All this is said only of a gedolah (an established adult woman); but for a ketanah (a minor) who has not reached the years of na'arut and has not brought signs (simanim), there is no need to separate near her veset so long as she has not fixed it three times. And the same applies to a zekenah (an older woman) whose blood has ceased (שנסתלקו דמיה).
The idea: the perishah rests on the presumption that the blood will come on schedule. Where that presumption is weak — a young girl whose cycle is not established, or an older woman whose periods have ceased — a veset obligates the perishah only if it has been established three times (veset kavua). For the details of ages and statuses, consult your Rav.
Group B — The precise time of the veset (seifim 4-6)
If she is accustomed to see at sunrise (בהנץ החמה) and we do not know with certainty whether it is before or after sunrise, she is forbidden only by day (and not the night that precedes).
Why the day alone? Sunrise is the boundary between night and day. In doubt over the exact side of that boundary, one separates by day — the daytime onah — since that is the moment most likely concerned, without needlessly extending the perishah into the night. The next seif treats the opposite case, where the seeing straddles both.
Seif 5 — Seeing prolonged across sunrise → night and day
If she is accustomed to see a seeing (re'iyah) that extends from before sunrise until after sunrise — she is forbidden by night and by day, to the measure of what extends (כשיעור הנמשך בו) on each side.
The difference from seif 4: here it is not a doubt about the time, but a seeing genuinely spread over the end of the night and the start of the day. The perishah therefore covers both partial onahs — the end of night and the start of day — each to the measure of the usual bleeding.
Seif 6 — A veset lasting 2-3 days: only the first onah
If the veset extends over two or three days — that she flows heavily (שופעת) or drips (מזלפת) — she need only separate for the first onah of the veset; and once that onah has passed without her having seen, she is permitted (even though the cycle would ordinarily continue).
The point: even a long veset calls for the perishah only for its first onah — the moment of the expected arrival of the blood. If that first onah passes "clean," the fear lapses and the couple is permitted, without waiting for the theoretical end of the cycle. For application, consult your Rav.
Group C — Pregnancy, nursing, fear, and the other women (seifim 7-9)
Seif 7 — Pregnancy and nursing: no perishah (24 months)
If her veset arrives during the days of her pregnancy — once the embryo is recognized (משהוכר עוברה) — or during the days of her nursing, which are twenty-four months from the birth of the child — even if the child has died — there is no need to separate near her veset, and even during her veset she is permitted without a bedikah (cf. the end of Siman 189).
מעוברת ומניקה — The pregnant and nursing woman: from the moment the pregnancy is recognized (≈ three months), and during the 24 months following the birth (even if, God forbid, the child has died), menstrual bleeding is not matzui ("common"). One is therefore exempt from the perishah near the veset — and even at the time of the veset, permitted without a bedikah.
The idea: the entire perishah rests on the presumption that blood will come. During a recognized pregnancy and nursing (24 months), that presumption lapses: the cycle is suspended. This is one of the most practical leniencies of the siman — but its limits (recognition of the embryo, counting the 24 months, the return of the cycle) require precision: consult your Rav.
Seif 8 — Hidden out of fear at the time of the veset
If she was hidden in a hiding place out of fear (מפני פחד) and the time of her veset arrived — she need not be concerned about it (אינה חוששת לו), for fright can drive away the blood. Gloss of the Rama:some say: only after the fact (bediavad) — if the veset has passed without her examining herself and without her feeling anything, she is tehorah without a bedikah; but a priori (lekhatchilah) she must examine herself.
The mechanism: intense fear can push back the arrival of the blood; the presumption of the veset then lapses. The Mehaber exempts one from concern; the Rama qualifies — bediavad she is tehorah without a bedikah, but lekhatchilah an examination remains fitting. For the details of the conditions, consult your Rav.
Seif 9 — The other women: the bedikah at the time of the veset
The other women (who are neither pregnant nor nursing nor hidden out of fear) require a bedikah when the veset arrives. If the veset has passed without her examining herself and without her feeling anything — she is tehorah without a bedikah. Some say she is forbidden until she examines herself, if she has a fixed veset or if it is the 30th day (יום ל׳), even though it is not fixed — and so is the practice (והכי נהוג; cf. Siman 189).
The practical point: at the time of the veset, a bedikah is required. The Mehaber: if she forgot it and felt nothing, she remains tehorah. The settled practice (yesh omrim, ve-hakhi nahug) is stricter for a fixed veset or the 30th day: forbidden until she examines herself. The detail belongs to Siman 189 — consult your Rav.
Group D — The traveler's pekidah, and the consultation (seifim 10-12)
Seif 10 — One who sets out on a journey: pokeid his wife, even near the veset
One who wishes to set out on a journey (לצאת לדרך) must "visit" his wife (לפקוד את אשתו) — that is, be with her before departure — even near her veset. Gloss of the Rama: and even tashmish is permitted (the vesatot are Rabbinic, and "במקום מצוה לא גזרו" — where there is a mitzvah, they did not decree); nevertheless, one who is stringent and contents himself with words of reconciliation (דברי ריצוי), may a blessing come upon him (תבוא עליו ברכה); every form of closeness and affection is permitted, save tashmish. If he goes for a mitzvah, he need not "visit" his wife. Some say: if the man wishes to travel and his wife is niddah and will be able to immerse (tovelet) within the next onah, he must wait.
פוקד אשתו — "Visiting" one's wife before a journey: it is a mitzvah for one setting out on a journey to be with his wife before departure (pekidah). This is one of the rare cases where, by exception (במקום מצוה לא גזרו), tashmish is permitted even near the veset — for the vesatot are of Rabbinic institution and they did not decree where there is a mitzvah.
The contrast with seif 2: as a rule, one separates for an onah before the veset. But setting out on a journey is a mitzvah (the pekidah): the decree of the vesatot was not extended to it, and tashmish becomes permitted again. The exceptions to the exception — travel for a mitzvah, a niddah wife who will soon immerse — show the subtlety of the law. For concrete application, consult your Rav.
Seif 11 — Veset bound to days: forbidden until he consults her (yish'alenah)
A woman who has a veset bound to days alone (וסת לימים), and the time of whose veset has arrived — it is forbidden to be with her until he consults her (yish'alenah), to know whether she has examined herself and is tehorah. If she has no fixed veset — the 30th day from her seeing (יום ל׳ לראייתה) is like the arrival of the time of the veset. But if, after the veset, enough time has elapsed for her to count (the clean days) and to immerse, he may be with her without needing to ask.
The point: at the precise time of the veset bound to days, the man must ascertain from his wife (yish'alenah) that she is indeed tehorah before tashmish. The date of the 30th day counts as a veset even absent a fixed cycle. But once the period for counting and immersion has elapsed, the presumption of taharah is restored and the consultation is no longer required.
Seif 12 — Veset bound to days + bound to the body: average onah = 30 days
If she had a veset bound to daysand a veset bound to the body (vesatot ha-guf) — for example a jump (קפיצה) or a similar cause — then, since this veset depends on an action, we say: "perhaps she did not jump, and so did not see" (אימור לא קפצה ולא ראתה); one therefore need not be concerned on that day for the bodily veset alone. But she is concerned for the average onah, which is thirty days (ל׳ יום) (cf. Siman 189).
עונה בינונית — The "average period," thirty days. For a woman without a fixed veset, one is concerned by default on the 30th day from the last seeing: this is the presumed "average" interval of a cycle. Even if a veset bound to an action (a jump) is not triggered for want of that action, the average onah of 30 days remains a concern.
The reasoning: a veset that depends on an action (jumping, lifting a load) is triggered only if the action took place — hence "אימור לא קפצה." But this does not remove the underlying concern: the average onah of 30 days, a universal presumption, remains in force. The detail of the bodily vesatot belongs to Siman 189 — consult your Rav.
2. Context — where this siman fits
Simanim 183 to 200 form the block of Niddah (taharat hamishpacha). After Siman 183, which establishes what renders a woman niddah (the blood of the makor, felt), Siman 184 opens the great topic of the vesatot: no longer "when is she a niddah?" but "when must one fear that she may become one, and so separate in anticipation?". The central question is not the tumah itself, but the preventive perishah — separating for one onah before the expected period.
The great questions of the siman
Question
Where?
Typical answer
Is a bedikah required before tashmish?
Seif 1
No, for a fixed veset outside its date (but "ha-marbeh livdok meshubachat")
How long does one separate, and from what?
Seif 2
One onah (day or night), from tashmish alone
Who is exempt?
Seifim 3, 7
Ketanah, zekenah; and pregnant / nursing (24 months)
The case of sunrise
Seifim 4-5
Doubt → the day alone; seeing spread → night and day
The pokeid before a journey
Seif 10
Tashmish permitted (be-makom mitzvah lo gazru)
The idea running through the siman: everything rests on presumptions (chazakot). Will the blood come on schedule (fixed veset)? Is the presumption suspended (pregnancy, nursing, fear)? The perishah is only a precaution proportioned to the strength of the fear — and the vesatot are, in many opinions, of Rabbinic (de-rabbanan) institution, which accounts for the leniencies (the pokeid, chibuk ve-nishuk).
3. The key concepts of this siman
To understand Siman 184, one must master a short technical vocabulary that describes how a woman anticipates her period and how the couple separates from it.
וסת — The cycle ("veset"): the regular rhythm by which a woman anticipates the arrival of her period. It may be kavua (fixed, established 3 times) or not. One distinguishes the veset bound to days (tied to a date — every 30 days) from the veset bound to a bodily change (tied to a physical symptom).
עונה — An onah: one day OR one night (a half-day). It is the duration of the perishah at the time of the veset: one separates for the onah when the blood is expected (the day, or the night).
פרישה — Perishah: the preventive separation before the period. It concerns only tashmish — not other forms of affection (chibuk ve-nishuk, permitted). To be distinguished from the harchakot of the niddah herself (Siman 195).
וסת קבוע — Fixed cycle: a veset that has been established three times. It founds a strong presumption — hence the exemption from a bedikah outside its date (seif 1) and the stringency of the bedikah on its date (seif 9, yesh omrim).
פוקד אשתו — "Visiting" one's wife before a journey: the mitzvah of pekidah (seif 10). By exception (be-makom mitzvah lo gazru), tashmish is permitted there even near the veset, for the vesatot are de-rabbanan.
עונה בינונית — The "average period," 30 days: the default concern, the 30th day from the last seeing, for a woman without a fixed veset (seif 12).
Two notions to hold together:מעוברת ומניקה (pregnant / nursing) — exempt from the perishah because "אין דמים מצוין" (bleeding is not common); and וסתות דרבנן — many opinions hold the vesatot to be of Rabbinic institution, which opens the leniencies (the pokeid, chibuk ve-nishuk).
4. The onah to separate — the day / night table
All of seif 2 reduces to a table. One crosses when the veset falls (day or night) with the onah from which one must separate — bearing in mind that an onah is an entire day or an entire night.
The veset falls…
One separates…
Permitted…
By day (even at its end)
The whole day
🟢 From the following night
At the start of the day
The whole day
🟢 The whole night before
By night
The whole night
🟢 The day before and after
At sunrise, in doubt (seif 4)
The day alone
🟡 The night before
Straddling sunrise (seif 5)
Night and day, ke-shiur ha-nimshach
🔴 The two partial onahs
The logic in one sentence: one separates for the onah (the half-day) when the blood is expected — no more. A single onah, from tashmish alone; and a long veset counts only for its first onah (seif 6).
The Rama's point (seif 2): this day/night mechanism applies only to the veset bound to days. The veset bound to a bodily change follows other rules (Siman 189). And a veset that advances/recedes by 2-3 days → one separates 2-3 days before or after.
5. The Shach and the Taz — the great commentators
In Yoreh De'ah, the Shulchan Aruch is never read alone. Two great commentaries accompany it on every page and structure the practical study: the Shach and the Taz. These are the reference nossei kelim in Yoreh De'ah (there is no Mishnah Berurah here, which comments only on Orach Chaim). On the vesatot is added the Pitchei Teshuva, particularly rich.
The Shach (ש״ך) — abbreviation of שפתי כהן, Siftei Kohen, by Rabbi Shabtai haCohen (Lithuania, 17th century). It is the reference commentary on Yoreh De'ah, of great analytical depth.
The Taz (ט״ז) — abbreviation of טורי זהב, Turei Zahav, by Rabbi David haLevi Segal (Poland, 17th century). Often in dialogue — and sometimes in disagreement — with the Shach.
A key entry from the Taz
Taz s.k. 2 — The extent of the perishah: a single onah
The Taz makes precise the sense of "separating for one onah": it is the very onah in which she is accustomed to see, and that alone — not the onah that precedes it. One therefore does not extend the perishah beyond the expected half-day. And all this applies, as the Rama emphasizes, only to the veset bound to days.
A key entry from the Taz on the pokeid
Taz s.k. 14 — Vesatot de-rabbanan; be-makom mitzvah lo gazru
The Taz explains the why of the leniency of seif 10: the vesatot are of Rabbinic institution (de-rabbanan), and "where there is a mitzvah, they did not decree" (be-makom mitzvah lo gazru). Now the pekidah before departure is a mitzvah — hence tashmish is permitted even near the veset. This is the clearest practical consequence (nafka minah) of the question "are the vesatot de-rabbanan or de-oraita?".
One sees the method: the Shach and the Taz do not repeat the Mehaber — they explain the mechanism (the exact extent of the onah; the de-rabbanan foundation of the vesatot) and rule. This is exactly what is deepened at the Lamdan level, with the great dispute over the vesatot de-rabbanan or de-oraita (Noda BiYhuda, Pitchei Teshuva s.k. 3).
6. The gloss of the Rama (הגה)
The Rama (Rabbi Moshe Isserles) adds to the text of the Mehaber glosses that reflect practice and refine the application. Here are his most notable interventions in our siman.
On seif 1 — not to over-examine at tashmish, but to multiply elsewhere
Gloss of the Rama: גם אין לה להחמיר לבדוק עצמה… שלא יהא לבו נוקפו ופורש… אבל שלא בשעת תשמיש כל המרבה לבדוק הרי זו משובחת — "she should not be stringent to examine herself (at the moment of tashmish)… so that his heart not misgive him to the point of separating… but outside the time of tashmish, whoever examines more is praiseworthy." A fine balance between the couple's peace of mind and vigilance.
On seif 2 — veset bound to days, not to a bodily change
Gloss of the Rama: וכל זה לא מיירי אלא בוסת התלוי בימים, אבל לא בוסת התלוי בשינוי הגוף… ועיין לעיל סימן קפ״ט — "all this applies only to the veset bound to days, not to the veset bound to a bodily change… see Siman 189." The Rama refers to Siman 189 for the bodily vesatot, and specifies the case of the veset that advances or recedes by 2-3 days.
On seif 10 — even tashmish permitted for the traveler
Gloss of the Rama: ואפילו בתשמיש שרי… ומכל מקום המחמיר שלא לפקדה רק בדברי רצוי תבא עליו ברכה… ואם הולך לדבר מצוה אין צריך לפקוד את אשתו — "even tashmish is permitted… nevertheless, one who is stringent and contents himself with words of reconciliation, may a blessing come upon him… and if he goes for a mitzvah, he need not visit his wife." The Rama balances the basic leniency (tashmish permitted) with a path of stringency (divrei ritzui) and an exception (travel for a mitzvah).
The Rama carefully distinguishes the basic law (the Mehaber) from the practice: he encourages the bedikah outside tashmish (seif 1), bounds the perishah to the veset bound to days (seif 2), rules the stricter practice for the fixed veset and the 30th day (seif 9), and maps out the pekidah of the traveler (seif 10) — all while keeping targeted leniencies (be-makom mitzvah lo gazru).
7. The pregnancy and nursing exemption (seif 7)
Seif 7 — one of the most practical leniencies of the siman — deserves a pause. Why is the pregnant or nursing woman exempt from the perishah?
Everything rests on an underlying presumption: during a recognized pregnancy and nursing, "אין דמים מצוין" — menstrual bleeding is not common (the cycle is suspended). The concern of the veset therefore lapses:
Pregnancy — from the moment the embryo is recognized (mishe-hukar ubarah, ≈ 3 months).
Nursing — for 24 months from the birth, even if the child has died (the body remains "loosened," avareha mitparkin, per the Taz).
Status
From / during
Consequence
Pregnant
Once the embryo is recognized
🟢 No perishah; even at the veset, permitted without a bedikah
Nursing
24 months after the birth (even if the child has died)
🟢 No perishah; even at the veset, permitted without a bedikah
Ordinary gedolah
Outside these states
🟡 Perishah of one onah at the veset (seif 2)
Note: this exemption is very practical, but its boundaries are delicate — the recognition of the embryo, the exact counting of the 24 months, the return of the cycle after that period, the month of pregnancy (machloket Shach / Kreti uPleti, Pitchei Teshuva s.k. 13). One never rules on this alone: consult your Rav.
8. Modern practical cases
How do these rules apply today? Here are four common situations illuminated by our siman — each closed, as befits so intimate a subject, by the referral to the Rav.
Case 1 — The perishah before the period and tracking the veset
How does one know when to separate? Everything rests on tracking the veset: noting each seeing (a diary, a taharat hamishpacha app) in order to know one's cycle. With a fixed veset, one separates for the expected onah (seif 2); without a fixed cycle, one is concerned at least for the average onah (the 30th day, seif 12). The perishah lasts only one onah and concerns only tashmish. To calculate one's dates and status (fixed or not) correctly, consult your Rav or a yoetzet.
Case 2 — The pekidah before a journey
A husband sets out on a journey as the date of the veset approaches (seif 10). The pekidah — being with one's wife before departure — is a mitzvah, and by exception (be-makom mitzvah lo gazru), tashmish is permitted even near the veset. But the limits are precise: travel for a mitzvah (no pekidah), a niddah wife who will soon immerse (wait), the path of stringency of divrei ritzui. Before applying, consult your Rav.
Case 3 — Pregnancy and nursing
A pregnant woman (embryo recognized) or one who is nursing (within 24 months) is exempt from the perishah near the veset, and even permitted without a bedikah at the time of the veset (seif 7). This is a major leniency — but its boundaries (recognition of the embryo, the end of the 24 months, the return of the cycle) are subtle. This is a very practical subject on which one never decides alone: consult your Rav.
Case 4 — The bedikot at the time of the veset
At the time of the veset, a bedikah is required (seif 9), especially for a fixed veset or the 30th day (yesh omrim, ve-hakhi nahug). Outside tashmish, multiplying bedikot is a virtue — "כל המרבה לבדוק הרי זו משובחת" (seif 1). But at the moment of tashmish, the Rama discourages excessive scruple, for the couple's peace of mind. To know when and how to examine, consult your Rav or a yoetzet.
The thread running through the four cases: first, ask the right questions — is my veset fixed? Am I in a state that suspends the concern (pregnancy, nursing)? Which onah is concerned? But the concrete decision, on so intimate and weighty a subject, always belongs to the Rav — or to a yoetzet — who knows the factual details.
9. Summary of Siman 184
The essence of Siman 184 in a few sentences:
Most women have a veset; for a fixed veset, no bedikah before tashmish outside its date (seif 1) — but "כל המרבה לבדוק משובחת" elsewhere.
At the time of the veset, one separates for one onah (day or night), from tashmish alone — chibuk ve-nishuk permitted (seif 2).
The veset bound to days follows the day/night mechanism; the veset bound to a bodily change belongs to Siman 189 (Rama, seif 2).
The perishah applies only to a gedolah; ketanah and zekenah are exempt so long as the veset is not fixed 3× (seif 3).
At sunrise: doubt → the day alone (seif 4); seeing spread → night and day (seif 5).
A long veset counts only for its first onah (seif 6).
Pregnant / nursing (24 months, even if the child has died): no perishah, permitted without a bedikah even at the veset (seif 7).
Hidden out of fear → need not be concerned; yesh omrim bediavad only (seif 8).
The other women: a bedikah at the veset; yesh omrim forbidden until a bedikah for a fixed veset or the 30th day (ve-hakhi nahug, seif 9).
The pokeid before a journey: tashmish permitted (be-makom mitzvah lo gazru); travel for a mitzvah → no pekidah (seif 10).
Veset bound to days: forbidden until he consults her (yish'alenah); the 30th day counts as a veset (seif 11).
Veset bound to days + bound to the body: "אימור לא קפצה," but one is concerned for the average onah = 30 days (seif 12).
Memory table
Situation
Rule
Fixed veset, outside its date
🟢 No bedikah before tashmish
At the time of the veset
🟡 Perishah of one onah, from tashmish alone
Ketanah / zekenah (veset not fixed 3×)
🟢 No perishah
Pregnant / nursing (24 months)
🟢 No perishah, even without a bedikah at the veset
Pokeid before a journey
🟢 Tashmish permitted (be-makom mitzvah lo gazru)
Veset bound to days, at the time of the veset
🔴 Forbidden until yish'alenah
Without a fixed veset
🟡 Concern for the average onah (30th day)
Comprehension questions
Check your understanding:
What is a וסת קבוע? Is a bedikah required before tashmish outside its date (seif 1)? What does the Rama say about a bedikah elsewhere?
How long does the perishah last, and from what exactly does one separate (seif 2)? What is an עונה?
What distinction does the Rama make between וסת תלוי בימים and וסת תלוי בשינוי הגוף (seif 2, referral to 189)?
Who is exempt from the perishah according to seif 3? Why a gedolah only?
At sunrise: what is the difference between seif 4 (doubt) and seif 5 (seeing spread)?
A veset lasting 2-3 days: for which onah does one separate (seif 6)?
Why are the מעוברת and the מניקה exempt (seif 7)? Until when for nursing?
What does seif 8 say about the woman hidden out of fear? What does the Rama qualify (yesh omrim)?
What bedikah must the other women do (seif 9)? What does the practice rule (ve-hakhi nahug)?
What is the פוקד אשתו before a journey (seif 10)? Why is tashmish permitted there?
What does ישאלנה mean (seif 11)? When need one no longer ask?
Explain "אימור לא קפצה" and the עונה בינונית of 30 days (seif 12).
To go further
If you want to deepen this siman:
📚 Level 2 — Lamdan: the pilpul, the great dispute over the vesatot de-rabbanan or de-oraita (Noda BiYhuda, Pitchei Teshuva s.k. 3), the yesod of the onah, the perishah / harchakot distinction, the chazakot (orach bizmano ba, chezkat taharah), anchored in the sugyot of Niddah
✨ Level 3 — Synthesis: the comparative tables (onah day/night, who is exempt, the pokeid), the golden rules, and quick memorization of the 12 seifim
⚖️ Level 4 — Daat HaRav (Chabad) & Halacha lema'asse: the shitah of the Tzemach Tzedek and of Chabad, and the practical ruling (Shach, Taz, Sidrei Tahara, Aruch haShulchan, Taharat haBayit, Shevet haLevi, Badei haShulchan) on concrete cases
The sources for this level can be consulted on Sefaria: