Eruvin 101b

עירובין ק״א ע״ב

Learn Eruvin 101b step by step: Aramaic beside English, every question, answer and proof colour-coded.

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Topic

Opening locks across domains on שבת: רבי מאיר vs. the חכמים, חוקקין להשלים, רב דימי's rule on a מקום פטור, and a new משנה on a knobbed bolt

Overview

This amud finishes a משנה where רבי מאיר says a person may not stand in one domain and open a lock in another domain unless he builds a ten-טפחים מחיצה. The חכמים answer with a story about a market in ירושלים where merchants took the key from a window above the door, and רבי יוסי corrects which market it was. The גמרא then quotes a ברייתא about garden gates and shop locks, where רבי מאיר and the חכמים disagree about where the key may be kept when the lock is high. The גמרא asks how big that lock is. אביי answers that it is under four by four but could be carved out to four, and the two sides argue whether we count that carving room (חוקקין להשלים). רב ביבי בר אביי draws three lessons from this. First, the rule of חוקקין להשלים has a source. Second, רבי מאיר retracted his strict ruling in the משנה. Third, the חכמים support רב דימי's rule that a מקום פטור may not be used to pass objects between two restricted domains. A new משנה follows, in which רבי אליעזר and רבי יוסי argue about locking with a knobbed bolt and each tells the טבריה story in the opposite way. The גמרא begins narrowing their dispute, and it continues on the next amud.

Opening lines

The steps (20)

1. Statementרבי מאיר requires a ten-handbreadth partition
2. ProofThe Rabbis cite the poultry market in ירושלים
3. Statementרבי יוסי corrects the name of the market
4. StatementGarden gates may be opened from the side with a gatehouse
5. StatementShops with a low lock: keep the key on the threshold
6. StatementShops with a high lock: keep the key in the lock
7. StatementThe Sages allow the key on the threshold even for a high lock
8. StatementA large window may not be used
9. StatementThe threshold must be a כרמלית
10. QuestionWhat kind of lock is this?
11. ChallengeIf the lock is a private domain, how can the Sages allow it?
12. Resolutionאביי: The lock is small but can be carved out to four
13. ResolutionThe dispute: Do we carve out to complete four?
14. ConclusionFirst lesson: We carve out to complete
15. ConclusionSecond lesson: רבי מאיר retracted about garden gates
16. ProofThird lesson: The Rabbis support רב דימי
17. StatementA bolt with a knob: רבי אליעזר forbids, רבי יוסי permits
18. Proofרבי אליעזר's story: the custom was to permit, and the Elders forbade it
19. Rejectionרבי יוסי tells the story the opposite way
20. Statementגמרא narrows the dispute: everyone agrees if the bolt can be lifted by its rope