English: "And you shall remember..." — What is the force of "and you shall remember that you were a slave"? Just as I furnished you liberally and repeated the gift, so you must furnish him liberally and repeat the gift; and just as in Egypt I gave to you with an open hand, so you must give to him with an open hand.
On the daf / in context: The memory of the double enrichment in Egypt (at the Exodus and at the Sea) becomes the model for the master’s obligation toward the departing slave.
Type of Learning
Derash on the verse (Sifrei) — the Egyptian experience models the parting grant.
What Is Learned
Because Hashem furnished Israel liberally and repeatedly when they left Egypt, a master must likewise furnish a departing Hebrew slave liberally and repeatedly.