Leviticus 8:18-21

18He brought the ram for the burnt offering, and Aaron and his sons laid their hands on the head of the ram.

19Moses killed it and sprinkled the blood around on the altar.

20When he had cut the ram into pieces, Moses offered up the head, the pieces, and the fat in smoke.

21After he had washed the entrails and the legs in water, Moses offered up the whole ram in smoke on the altar. It was a burnt offering for a sweet and soothing aroma, an offering by fire to the Lord, just as the Lord had commanded Moses.