When a husband annuls his wife's vow on Shabbat, must he use the standard verbal formula 'mufar lach'?
Synopsis
On Shabbat, a husband should not use the standard formula 'mufar lach' but should instead annul silently in his heart and tell his wife 'take and eat' or 'take and drink.' A Torah scholar's annulment, however, still requires verbal declaration.
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May a Torah scholar annul (heter nedarim) a person's vow on Shabbat when the vow is not relevant to Shabbat needs, and the vow could have been annulled before Shabbat?
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