Halacha:

Pesach 

References: Pesachim: 118a  

Description

In this Shiur, we briefly introduce the Mitzvah of Arba'ah Kosot, explore the Halakhic history behind the mysterious "fifth cup" as it appears in some Rishonim and manuscripts of the Gemara, and encounter a fascinating passage about it in a Haggadah attributed to the Maharal.