Leviticus 4:10-12

¹⁰Then the Supreme Priest must completely burn those things on the altar. That will be just like when the fat is removed from an animal that is sacrificed to maintain good fellowship with Yahweh.

¹¹But all the other parts of the animal—its skin/hide and all its other meat, its head and its legs, its inner parts and the intestines,

¹²he must take outside the camp and throw them in a place that is acceptable to Yahweh, where the ashes are thrown, and he must burn them in a fire on the pile of ashes.