Numbers 35:25-27

Darby(i) 25 and the assembly shall rescue the manslayer out of the hand of the avenger of blood, and the assembly shall restore him to the city of his refuge, whither he had fled; and he shall abide in it until the death of the high-priest, who was anointed with the holy oil. 26 But if the manslayer shall in any way come outside the limits of the city of his refuge whither he hath fled, 27 and the avenger of blood find him outside the limits of his city of refuge, and the avenger of blood kill the manslayer, there shall be no blood-guiltiness upon him;