The halacha (Orah Hayyim 677) is that a guest must contribute a perutah towards the fulfillment of the mitzvah of lighting Chanuka candles. I would like to know why we don't find a similar idea by ...
Is hachnasas orchim (welcoming guests) a mitzvah (either of biblical or rabbinic origin)? If not why is it considered more important than greeting the divine presence (bereshis 18:3 Rashi)? Does it ...