Leviticus 6:1-3

¹And the Lord spoke to Moses, saying,

²Charge Aaron and his sons, saying, This is the law of whole burnt offering; this is the whole burnt offering in its burning on the altar all the night till the morning; and the fire of the altar shall burn on it, it shall not be put out.

³And the priest shall put on the linen tunic, and he shall put the linen drawers on his body; and shall take away that which has been thoroughly burned, which the fire shall have consumed, even the whole burnt offering from the altar, and he shall put it near the altar.