Leviticus 8:20-22

8:20 Then he cut the ram into parts, and Moses offered the head, the parts, and the suet up in smoke, 8:21 but the entrails and the legs he washed with water, and Moses offered the whole ram up in smoke on the altar – it was a burnt offering for a soothing aroma, a gift to the Lord, just as the Lord had commanded Moses.

8:22 Then he presented the second ram, the ram of ordination, and Aaron and his sons laid their hands on the head of the ram