Numbers 31:7-10

7And they warred against Midian, as Jehovah had commanded Moses, and slew all the males.

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;

10and all their cities in their settlements and all their encampments they burned with fire.