DAAT · LEVEL 3 — MAGISTERIAL SYNTHESIS
Siman רע"ז
סימן רע"ז · שֶׁלֹּא לִגְרוֹם כִּבּוּי הַנֵּר
Recap & mnemonics for review
📑 Synthesis plan
- The central axiom of the siman
- The key concepts in condensed form
- Hierarchy of cases — from broadest to most restrictive
- Decision tree
- Positive or protective act? — the heart of גְּרַם כִּבּוּי
- Pitfalls to avoid
- Modern practical cases
- Final synthesis table
- The practical mitzvos
1. The central axiom
Siman רע"ז in one sentence.
Do not cause the Shabbos lamp to be extinguished — indirect causal actions (wind through an opened door, movement of oil). 5 codified cases: door behind a lit lamp, door facing a fire, lamp forgotten on a board, lamp on a tree, vessel overturned to protect from a fire. Distinction oil vs wax, basis vs forgetting.
Do not cause the Shabbos lamp to be extinguished — indirect causal actions (wind through an opened door, movement of oil). 5 codified cases: door behind a lit lamp, door facing a fire, lamp forgotten on a board, lamp on a tree, vessel overturned to protect from a fire. Distinction oil vs wax, basis vs forgetting.
2. The 4 key concepts in condensed form
| Concept | Meaning | Application |
|---|---|---|
| גְּרַם כִּבּוּי | "Indirect cause" — not direct mechabeh | Muttar for protection (s.5). Assur if foreseeable temptation (s.1-2) |
| בָּסִיס לְדָבָר הָאָסוּר | "Support for a muktzeh" | If lamp placed intentionally, the board becomes muktzeh. Forgotten = not basis (s.3) |
| Oil vs Wax | Lamp with floating wick vs solid wax | Oil: movement = mav'ir. Wax: OK (s.1 Rama, s.3) |
| Shabbos vs Yom Tov | Lamp muktzeh or not? | Shabbos: lamp muktzeh after extinguishing. Yom Tov: may extinguish, hence not muktzeh (s.4) |
3. Hierarchy of actions
Level 1 — Safe: overturning a vessel onto the lamp to prevent fire (s.5 — protective gerama de-kibbuy).
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Level 2 — OK with caution: closing the door opposite the lamp (s.1-2 — protective act).
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Level 3 — Muttar if forgotten: shaking a board to drop a forgotten wax candle (s.3).
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Level 4 — Assur: opening the door opposite the lamp (wind risk — s.1).
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Level 5 — Always assur: moving a piece of furniture bearing a lamp that was intentionally placed (s.3 — basis).
4. Practical decision tree
Q1: Can my action extinguish or fan the lamp? → check wind, oil movement.
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Q2: If yes — is it oil or wax? Wax = OK. Oil = problematic.
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Q3: Is the lamp placed intentionally or forgotten? Placed = basis. Forgotten = not basis.
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Q4: I want to close a door/window (protection)? → muttar.
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Q5: Fire threatening? → overturning a vessel muttar (s.5). If real danger = pikuach nefesh, everything muttar.
5. Positive or protective act? — the heart of גְּרַם כִּבּוּי
The entire siman רע"ז rests on a single distinction, and it is the most subtle point to grasp: the same indirect cause — a door being moved, a vessel being overturned — is sometimes assur, sometimes muttar. The criterion is not the effect (the lamp goes out in both cases) but the orientation of the act.
"Positive" act that causes the extinction → assur. Opening the door opposite the lamp on a windy day: one deliberately introduces the cause that will extinguish. Even though the extinction is only indirect (גְּרַם כִּבּוּי), Chazal forbade it because the person acts toward the feared outcome (s.1).
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"Protective" act that prevents damage → muttar. Overturning a vessel onto the lamp so it does not set the beam on fire: here the person acts against a danger, and the גְּרַם כִּבּוּי is tolerated (s.5). Closing a door to protect the flame from the wind follows the same logic.
The borderline case to understand. Why is the same door assur to open and muttar to close? Because the decisive criterion is the foreseeable temptation. Opening against the wind makes the extinction nearly certain and the act is turned toward it; closing keeps the wind out and protects. The classic pitfall: thinking that "indirect = always muttar." False — a גְּרַם כִּבּוּי oriented toward extinguishing remains assur. Conversely, in case of real fire danger, it is פִּקּוּחַ נֶפֶשׁ and one does not hesitate.
In practice. Ask yourself: does my act aim to extinguish/fan, or does it protect (the flame, or the house)? Add the second parameter: oil (movement = מַבְעִיר) or wax (inert); placed intentionally (בָּסִיס) or forgotten. For SA HaRav and Chabad practice: like the Rama — see Level 4.
6. Mnemonic — D.O.B.
D — Door/window facing lamp: opening assur, closing muttar.
O — Oil movement: oil lamp affixed = assur. Wax = OK.
B — Basis: placed intentionally = do not move. Forgotten (wax) = shaking OK.
7. The 4 pitfalls to avoid
Pitfall 1 — Opening a window on Shabbos without checking where the lamp is. If the lamp faces the window and wind outside: assur (s.1). Check beforehand or move the lamp before Shabbos.
Pitfall 2 — Confusing "shaking" and "moving" the board. Shaking to drop a forgotten wax candle = muttar (s.3). But moving the board itself = assur (basis if placed intentionally).
Pitfall 3 — Not distinguishing Shabbos and Yom Tov for the lamp on a tree. Shabbos OK (lamp will stay). Yom Tov assur (will take down). See s.4.
Pitfall 4 — Hesitating to overturn a vessel in case of fire risk. Muttar (s.5) — protective gerama. In real danger: pikuach nefesh, do not hesitate.
8. Modern practical cases
| Situation | Conduct in practice |
|---|---|
| Shabbos lamp next to the front door | Open gently, or ideally move the lamp before Shabbos. |
| Fan turned on before Shabbos directed toward lamp | If at a distance — OK. If too close, risk of extinguishing → move the fan if possible (without touching the lamp). |
| A/C blowing through a vent toward the lamp | If lamp protected by glass (lantern): OK. Otherwise: move away. |
| Lamp forgotten on table where I want to eat | Wax + forgotten: gently shake the table to drop it. Oil: not at all (s.3). |
| Small home fire near the ceiling | Overturn a vessel (s.5) for gerama. Otherwise, call firefighters (pikuach nefesh). |
| Chanukah candle on a railing attached to the wall | Muttar on Shabbos (s.4 analogy) if placed before kindling. |
9. Final synthesis table
| Element | Detail |
|---|---|
| Subject | Not causing the Shabbos lamp to be extinguished — indirect actions |
| Number of seifim | 5 (Mechaber) + 3 hagahos (Rama) |
| Talmudic source | Shabbos 120a (gerama de-kibbuy) |
| Mishnah Berurah | 24 entries |
| Concepts | gerama de-kibbuy — basis lemuktzeh — oil/wax — Shabbos/Yom Tov |
| Halachic yesod | Chazal distinguished positive actions (assur) from protective ones (muttar) |
10. The 5 practical mitzvos of Siman רע"ז
🚪 The "do not cause extinction" rule — in 5 mitzvos
- Lamp facing door/window: opening assur (wind). Closing muttar (s.1-2).
- Oil lamp affixed to door: all movement assur. Wax (Rama): muttar.
- Lamp forgotten on board: shaking muttar (wax, no intent to extinguish). Intentionally placed = basis.
- Lamp on tree: Shabbos OK (lamp remains). Yom Tov assur (will take down).
- Vessel overturned onto lamp to protect from fire: muttar (s.5).
→ Borderline cases (gas, electricity, ventilation): consult a Rav.
📚 Recap of the study path
You have studied Siman רע"ז at 3 levels:
You have studied Siman רע"ז at 3 levels:
- 🌱 Level 1 — Base: the 5 seifim, English translation, halachic concepts
- ⚡ Level 2 — Lamdan: Talmudic sources, shitos of the Rishonim, machlokes, nafka minos
- ✨ Level 3 — Synthesis: axiom, mnemonic, decision tree, practical mitzvos