Numbers 26:61

King James 3 - The Literal Traslation

And Nadab and Abihu died for bringing strange fire before Jehovah.

Cross References

Numbers 3:4

And Nadab and Abihu died before Jehovah in the wilderness of Sinai, for bringing strange fire before Jehovah. And they had no sons. And Eleazar and Ithamar acted as priests in the presence of their father Aaron.

Exodus 6:23

And Aaron took Elisheba the daughter of Amminadab, the sister of Nahshon, to him for a wife. And she bore to him Nadab, and Abihu, Eleazar, and Ithamar.