Leviticus 8:14-17

¹⁴Then he brought the bull of the sin offering, and Aaron and his sons laid their hands on the head of the bull of the sin offering. ¹⁵Next Moses slaughtered it and took the blood and with his finger put some of it around on the horns of the altar, and purified the altar. Then he poured out the rest of the blood at the base of the altar and consecrated it, to make atonement for it. ¹⁶He also took all the fat that was on the entrails and the lobe of the liver, and the two kidneys and their fat; and Moses offered it up in smoke on the altar. ¹⁷But the bull and its hide, its flesh, and its refuse he burned in the fire outside the camp, just as the Lord had commanded Moses.