Numbers 1:20

And there were of the children of Reuben, Jacob’s first born, according to their pedigrees, according to their communities, according to the houses of their families, according to the number of names by their poll—all the males from twenty years old and upwards, every one who went out in the army, on the review of those of the tribe of Reuben, were forty-six thousand five hundred.

And the sons of Ruben the first-born of Israel according to their kindreds, according to their divisions, according to the houses of their families, according to the number of their names, according to their heads, were—all males from twenty years old and upward, every one that went out with the host—