Numbers 26:61 (BSB)

but Nadab and Abihu died when they offered unauthorized fire before the LORD.

From Numbers 26. Also in the ESV.

Commentary on Numbers 26:61

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on Numbers 26:57-62: Levi was God's tribe, a tribe that was to have no inheritance with the rest in the land of Canaan, and therefore was not numbered with the rest, but by itself; so it had been numbered in the beginning of this book at Mount Sinai, and therefore came not under the sentence passed upon all that were then numbered, that none of them should enter...
• Keil & Delitzsch (Lutheran), Biblical Commentary on the Old Testament on Numbers 26:60-61: Num 26:60-61 Sons of Aaron: cf. Num 3:2 and Num 3:4; Exo 6:23; Lev 10:1, Lev 10:2.