Exodus 10:24-26

24Then Pharaoh summoned Moses and said, “Go, serve the Lord – only your flocks and herds will be detained. Even your families may go with you.”

25But Moses said, “Will you also provide us with sacrifices and burnt offerings that we may present them to the Lord our God?

26Our livestock must also go with us! Not a hoof is to be left behind! For we must take these animals to serve the Lord our God. Until we arrive there, we do not know what we must use to serve the Lord.”