Exodus 12:8
8 They shall eat the flesh that night, roasted on the fire; with kunleavened bread and bitter herbs they shall eat it.
Deuteronomy 16:3
3 You shall eat no leavened bread with it. mSeven days you shall eat it with unleavened bread, the bread of affliction—for you came out of the land of Egypt nin haste—that all the days of your life you may remember the day when you came out of the land of Egypt.