Numbers 31:28

31:28 “You must exact a tribute for the Lord from the fighting men who went out to battle: one life out of five hundred, from the people, the cattle, and from the donkeys and the sheep.

Numbers 32:29

32:29 Moses said to them: “If the Gadites and the Reubenites cross the Jordan with you, each one equipped for battle in the Lord’s presence, and you conquer the land, then you must allot them the territory of Gilead as their possession.