Leviticus 10:6 ICB

[6] Then Moses spoke to Aaron and his other sons, Eleazar and Ithamar. Moses told them, "Don't show any sadness. Don't tear your clothes or leave your hair uncombed. If you do those things, you will die, and the Lord will be angry with all the people. All the people of Israel are your relatives. They may cry loudly about the Lord burning Nadab and Abihu.