Numbers 26:61

Good News Translation (US Version)

Nadab and Abihu died when they offered unholy fire to the Lord.

Cross References

Numbers 3:4

but Nadab and Abihu were killed when they offered unholy fire to the Lord in the Sinai Desert. They had no children, so Eleazar and Ithamar served as priests during Aaron's lifetime.

Exodus 6:23

Aaron married Elisheba, the daughter of Amminadab and sister of Nahshon; she bore him Nadab, Abihu, Eleazar, and Ithamar.