Leviticus 9:8-11

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