Halacha:

Pesach 

Collections: The Mitzvah of Eating Matza

Description

Must one redo his achilas matzah or arba kosos if he neglects to lean? How about leaning during the meal? During magid? What is the source and rationale for heseiba? Is it a standalone chiyuv? An enhancement of Matzah/arba kosos? Tosfos, Rambam, Ran, Rosh, Meiri, Brisker Rav, Midrash Rabbah