Numbers 26:3-5

Young's Literal Translation

³ And Moses speaketh -- Eleazar the priest also -- with them, in the plains of Moab, by Jordan, [near] Jericho, saying,

⁴ `From a son of twenty years and upward,' as Jehovah hath commanded Moses and the sons of Israel who are coming out from the land of Egypt.

⁵ Reuben, first-born of Israel -- sons of Reuben: [of] Hanoch [is] the family of the Hanochite; of Pallu the family of the Palluite;