Leviticus 10:12-13

And Moses spoke to Aaron, and to Eleazar and Ithamar, his sons who were left: “Take the grain offering that remains of the offerings made by fire to the LORD, and eat it without leaven beside the altar; for it is most holy. You shall eat it in a holy place, because it is your due and your sons’ due, of the sacrifices made by fire to the LORD; for so I have been commanded.