Friday, July 6, 2018

shabbat - Source for Rabbis being able to say not to do a Deoriata


What is the source for Rabbis being able to say that one is not allowed to do a mitzvah deorita?


Examples that come to mind are blowing shofar on Rosh Hashana on Shabbat, lulav on Sukkot (at least first day) on Shabbat, and more.


Ideas?




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