Bamidbar 26:9-11

Orthodox Jewish Bible

⁹ And the Bnei Eliav; Nemuel, and Datan, and Aviram. This is that Datan and Aviram, which were summoned by the edah, who made a contention against Moshe and against Aharon in the adat Korach, when they contended in opposition to Hashem:

¹⁰ And ha’aretz opened her mouth, and swallowed them up together with Korach, when that edah died, when the eish devoured 250; and they became as a nes (warning).

¹¹ Notwithstanding, the Bnei Korach died not.