Exodus 10:25

And Moses said, thou must give us also sacrifices and
burnt offerings
Sheep, rams, and goats for sacrifices, and oxen for burnt offerings; and that of his own, as Jarchi interprets it; but rather the meaning is, that besides having their little ones with them, they must be allowed also to take their cattle for sacrifices and burnt offerings: that we may sacrifice unto the Lord our God;
might have wherewith to offer up in sacrifice to him as he shall require.