Zichira Vs. Sippur

The Gri"z, Harav Yitzchak Zev HaLevi Soloveitchik, used to say that every year on the night of the seder, his father, HaRav Chaim HaLevi M'Brisk, used to explain to all of the children of the house the uniqueness of the mitzvah of Sippur Yitzias Mitzrayim in comparison to the mitzvah of Zechiras Yetzias Mitzrayim which one has on every day of the year.

He listed three differences:

A. In order to fulfill the mitzvah of zechira one only has to remember the yetzias mitzrayim whereas the mitzvah of sippur requires one to tell over the story to other people (in the form of questions and answers).

B. During the Zechira which we are required to do during the rest of the year we have to specifically remember yetzias mitzrayim (B'Klal). On Pesach night we have a mitzvah to talk about every detail which occured during the Exodus. "LiHaschil BiGenus U'Misayeim B'Shvach - Starting with our sorry and ending with our exalted state."

C. Zechira is on the Yetzias Mitzrayim itself. In addition to the the mitzvah of Sippur Yetzias Mitzrayim requires for one to explain and understand all of the reason for the mitzvos which we perform on the eve of Pesach.

The Aruch LaNer adds, in Messeches Sukka (28a)it is recorded that "on the night of Pesach it is not enough to take part in zechiras yetzias mitzrayim but that one also has to go a step further and take part in the mitzvah of Sippur Yetzias Mitzrayim. This is accomplished through 'V'Higadita L'Vincha' as well as through the in depth discussion of Pesach, Matzah and Marror.