The Gemara relates two short and cryptic anecdotes. (Nedarim 76b) The first is that Chiya the son of Rav would shoot arrows and examine them. The second anecdote is that Rabba the son of Rav Huna would sit and stand.

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Hataras Nedarim With General Regret – Vows and Oaths in the Gemara | Daf Yomi Insights