Numbers 26:61
Death overtook Nadab and Abihu when they made an offering of strange fire before the Lord.
Leviticus 10:1-2
And Nadab and Abihu, the sons of Aaron, took their vessels and put fire in them and perfume, burning strange fire before the Lord, which he had not given them orders to do.
Numbers 3:4
And Nadab and Abihu were put to death before the Lord when they made an offering of strange fire before the Lord, in the waste land of Sinai, and they had no children: and Eleazar and Ithamar did the work of priests before Aaron their father.
1 Chronicles 24:1-2
Now the divisions into which the sons of Aaron were grouped were these: the sons of Aaron, Nadab and Abihu, Eleazar and Ithamar.
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