Exodus 12:31

12:31 Pharaoh summoned Moses and Aaron in the night and said, “Get up, get out from among my people, both you and the Israelites! Go, serve the Lord as you have requested!

Exodus 12:39

12:39 They baked cakes of bread without yeast using the dough they had brought from Egypt, for it was made without yeast – because they were thrust out of Egypt and were not able to delay, they could not prepare food for themselves either.