Leviticus 1:7-9

7The sons of Aaron the priest shall put fire on the altar, and lay the wood in order on the fire.

8Then the priests, Aaron’s sons, shall lay the parts, the head, and the fat in order on the wood that is on the fire upon the altar;

9but he shall wash its entrails and its legs with water. And the priest shall burn all on the altar as a burnt sacrifice, an offering made by fire, a sweet aroma to the Lord.