Leviticus 4:8-12

8And he shall take off from it all the fat of the bull for the sin offering; the fat that covereth the inwards, and all the fat that is upon the inwards, 9And the two kidneys, and the fat that is upon them, which is by the flanks, and the fat above the liver, with the kidneys, that shall he take away, 10As it was taken off from the bull of the sacrifice of peace offerings: and the priest shall burn them upon the altar of the burnt offering. 11And the skin of the bull, and all his flesh, with his head, and with his legs, and his inwards, and his dung, 12Even the whole bull shall he carry forth outside the camp to a clean place, where the ashes are poured out, and burn him on the wood with fire: where the ashes are poured out shall he be burnt.12