Leviticus 8:14-17

14He brought the bull that was the offering for sin. Aaron and his sons placed their hands on its head.

15When it was slaughtered, Moses took the blood and put it on the horns of the altar all around with his finger and cleansed the altar from sins. He poured the rest of the blood at the bottom of the altar and declared it holy so that priests could use it to make peace with the Lord.

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

17He burned the rest of the bull, its skin, meat, and excrement outside the camp, as the Lord commanded him.