Leviticus 4:8-12

81He shall remove from it all the fat of the bull of the sin offering: the fat that covers the entrails, and all the fat which is on the entrails, 9and the two kidneys with the fat that is on them, which is on the loins, and the 2lobe of the liver, which he shall remove 3with the kidneys 10(just as it is removed from the ox of the sacrifice of peace offerings), and the priest is to offer them up in smoke on the altar of burnt offering. 11But 4the hide of the bull and all its flesh with its head and its legs and its entrails and its refuse, 125that is, all the rest of the bull, he is to bring out to 6a clean place outside the camp where the 7ashes are poured out, and burn it on wood with fire; where the 8ashes are poured out it shall be burned.