Leviticus 8:14-17

14Then he brought the bull near for the sin offering, and Aaron and his sons laid their hands on the head of the bull for the sin offering.

15Then Moses slaughtered it, took the blood, and applied it with his finger to the horns of the altar on all sides, purifying the altar. He poured out the blood at the base of the altar and consecrated it so that atonement can be made on it.

16Moses took all the fat that was on the entrails, the fatty lobe of the liver, and the two kidneys with their fat, and he burned them on the altar.

17He burned the bull with its hide, flesh, and waste outside the camp, as the Lord had commanded Moses.