Leviticus 10:2

10:2 So fire went out from the presence of the Lord and consumed them so that they died before the Lord.

Numbers 3:4

3:4 Nadab and Abihu died before the Lord when they offered strange fire before the Lord in the wilderness of Sinai, and they had no children. So Eleazar and Ithamar ministered as priests in the presence of Aaron their father.

Numbers 26:61

26:61 But Nadab and Abihu died when they offered strange fire before the Lord.