Exodus 29:15-18

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