Leviticus 4:11

“But the flesh of the bull and its hide and its refuse, you shall burn with fire outside the camp; it is a sin offering.

‘But no sin offering, of which any of the blood is brought into the tent of meeting to make atonement in the holy place, shall be eaten; it shall be burned with fire.

But the bull and its hide and its flesh and its refuse he burned in the fire outside the camp, just as Yahweh had commanded Moses.

So Aaron came near to the altar and slaughtered the calf of the sin offering which was for himself.

The flesh and the skin, however, he burned with fire outside the camp.

“Aaron shall enter the holy place with this: with a bull from the herd for a sin offering and a ram for a burnt offering.

‘And you shall give it to Eleazar the priest, and it shall be brought outside the camp and be slaughtered in his presence.

‘Then the heifer shall be burned in his sight; its hide and its flesh and its blood, with its refuse, shall be burned.

And they brought seven bulls, seven rams, seven lambs, and seven male goats for a sin offering for the kingdom, the sanctuary, and Judah. And he ordered the priests, the sons of Aaron, to offer them on the altar of Yahweh.