Exodus 29:15-18

¹⁵“You shall also take the one ram, and Aaron and his sons shall lay their hands on the head of the ram; ¹⁶and you shall slaughter the ram and shall take its blood and sprinkle it around on the altar. ¹⁷Then you shall cut the ram into its pieces, and wash its entrails and its legs, and put them with its pieces and its head. ¹⁸You shall offer up in smoke the whole ram on the altar; it is a burnt offering to the Lord: it is a soothing aroma, an offering by fire to the Lord.