Exodus 29:15-18

“Then take one of the rams. Have Aaron and his sons place their hands on the head of the ram. Slaughter the ram and take its blood and throw it against the Altar, all around. Cut the ram into pieces; wash its innards and legs, then gather the pieces and its head and burn the whole ram on the Altar. It is a Whole-Burnt-Offering to GOD, a pleasant fragrance, an offering by fire to GOD.