Origins of the Haggadah
17 Nissan 5767
What is the Rav's source for the comment that the two answers to mah nishtana derive from two separate haggadot from the time of Chazal? Is it the Rav's own interpretation or is it found in meforshim or poskim?
See "Haggadah Shelemah" by rav M.M.Kasher zatzal.