Exodus 10:24-26

ISV(i) 24 Pharaoh called Moses and said, “Go serve the LORD, but your flocks and your cattle are to remain. Even your little ones can go with you!”
25 Moses said, “You must let us have sacrifices and burnt offerings to offer to the LORD our God. 26 And even our livestock must go with us. Not a hoof will be left behind because we will use some of them to serve the LORD our God, and until we get there we won’t know what we need to serve the LORD.”