Leviticus 9:8-14

8So Aaron drew near unto the altar, and slew the calf of the sin offering, which was for himself.

9And the sons of Aaron presented the blood unto him: and he dipped his finger in the blood, and put it upon the horns of the altar, and poured out the blood at the base of the altar:

10but the fat, and the kidneys, and the caul from the liver of the sin offering, he burnt upon the altar; as the LORD commanded Moses.

11And the flesh and the skin he burnt with fire without the camp.

12And he slew the burnt offering; and Aaron’s sons delivered unto him the blood, and he sprinkled it upon the altar round about.

13And they delivered the burnt offering unto him, piece by piece, and the head: and he burnt them upon the altar.

14And he washed the inwards and the legs, and burnt them upon the burnt offering on the altar.