Exodus 29:15-18

15Thou shalt also take one ram; and Aaron and his sons shall put their hands upon the head of the ram. 16And thou shalt slay the ram, and thou shalt take his blood, and sprinkle it round about upon the altar. 17And thou shalt cut the ram in pieces, and wash the inwards of him, and his legs, and put them unto his pieces, and unto his head.1 18And thou shalt burn the whole ram upon the altar: it is a burnt offering unto Yhwh: it is a sweet savour, an offering made by fire unto Yhwh.