Leviticus 8:16-17

¹⁶And he taketh all the fat that is on the inwards, and the redundance above the liver, and the two kidneys, and their fat, and Moses maketh Perfume on the altar,

¹⁷and the bullock, and its skin, and its flesh, and its dung, he hath burnt with fire, at the outside of the camp, as Jehovah hath commanded Moses.