Exodus 29:10-15

10“Then you shall bring the bull in front of the tent of meeting, and Aaron and his sons shall 1lay their hands on the head of the bull. 11And you shall slaughter the bull before the Lord at the doorway of the tent of meeting. 12Then you shall 2take some of the blood of the bull and put it on 3the horns of the altar with your finger; and you shall pour out all the rest of the blood at the base of the altar. 13And you shall 4take all the fat that covers the entrails, and the 5lobe of the liver, and the two kidneys and the fat that is on them, and offer them up in smoke on the altar. 14But 6the flesh of the bull and its hide and its refuse, you shall burn with fire outside the camp; it is a sin offering.

15“7You shall also take the one ram, and Aaron and his sons shall lay their hands on the head of the ram;