Nedarim 58a

נדרים נ״ח ע״א

Learn Nedarim 58a step by step: Aramaic beside English, every question, answer and proof colour-coded.

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Topic

Does permitted material cancel a forbidden item? רבי שמעון's rule about items that 'have מתירין', the challenge from שביעית, and a new proof from rained-on onions

Overview

The גמרא is trying to settle whether permitted material or permitted growth can cancel out a forbidden item. It quotes a ברייתא of רבי שמעון: items that will become permitted later, like טבל or חדש, are never cancelled, but items that stay forbidden forever, like תרומה or ערלה, can be cancelled. The חכמים challenge him from שביעית, which seems to stay forbidden yet forbids its own kind in any amount. רבי שמעון answers that the 'any amount' rule is only about ביעור, while for eating the rule is נותן טעם. The גמרא rejects this as a proof, because a stringent ruling may be different. Next it brings a משנה about onions that sprouted during or after שביעית, which suggests that permitted growth cancels the forbidden original. That proof is pushed away too: maybe the משנה is about crushed onions that are no longer fit to eat. The amud ends as the גמרא begins quoting a ברייתא for a new proof, which continues on the next amud.

Opening lines

The steps (9)

1. Statementרבי שמעון's rule: items that will become permitted vs. items that never will
2. ChallengeThe חכמים challenge רבי שמעון from שביעית produce
3. Resolutionרבי שמעון answers: 'any amount' applies only to removal; for eating it is flavor
4. RejectionThe proof is rejected: a stringent case may be different
5. ProofA new proof from onions that sprouted in the Sabbatical year
6. ProofThe rest of the onion משנה: pulled up by their leaves
7. ProofProposed proof: permitted growth cancels the prohibition
8. RejectionMaybe the משנה is about crushed onions
9. ProofSetting up a new proof from a ברייתא