Leviticus 10:5-6

⁵And they came near and took them in their coats out of the camp, as Moses said.

⁶And Moses said to Aaron, and Eleazar and Ithamar his sons that were left, Ye shall not make bare your heads, and ye shall not tear your garments; that ye die not, and so there should be wrath on all the congregation: but your brethren, even all the house of Israel, shall lament for the burning, with which they were burnt by the Lord.