Numbers 31:8-9

8And they slew the kings of Midian, besides the others slain, Evi, and Rekem, and Zur, and Hur, and Reba, five kings of Midian; and Balaam the son of Beor they slew with the sword.

9And the children of Israel took the women of Midian captives, and their little ones, and took for a spoil all their cattle and all their flocks and all their goods;