Exodus 10:9; Exodus 10:26

9 Moses answered, “We will go with our young and our old, with our sons and our daughters, and with our flocks and herds, because we are to celebrate a festival to the LORD.”

26 Our livestock too must go with us; not a hoof is to be left behind. We have to use some of them in worshiping the LORD our God, and until we get there we will not know what we are to use to worship the LORD.”