At last Moses sallied forth upon his journey to Egypt, accompanied by his wife and his children. He was mounted upon the very ass that had borne Abraham to the Akedah on Mount Moriah, the ass upon which the Messiah will appear riding at the end of days. Even now, his journey begun, Moses was but half-hearted about his mission. He travelled leisurely, thinking: "When I arrive in Egypt and announce to the children of Israel that the end of the term of Egyptian slavery has come, they will say, 'We know very well that our bondage must last four hundred years, and the end is not yet,' but if I were to put this objection before God, He would break out in wrath against me. It is best for me to consume as much time as possible on the way thither."
Moses Rode the Same Donkey That Carried Isaac to the Binding
Legends of the Jews 4:224