Does performing melacha before Havdalah, without first saying 'HaMavdil,' trigger the same tefillah-repetition requirement as eating before Havdalah?
Synopsis
The Rashba and Rosh hold that doing melacha before Havdalah (without 'HaMavdil') is equivalent to eating, triggering the tefillah-repeat requirement. The Rambam's silence and Biur Halacha's analysis suggest the melacha case does not require repeat in practice.
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