Numbers 35:26-28

21st Century King James Version

²⁶ But if the slayer shall at any time come outside the border of the city of his refuge whither he had fled,

²⁷ and the avenger of blood find him outside the borders of the city of his refuge, and the avenger of blood kill the slayer, he shall not be guilty of blood,

²⁸ because he should have remained in the city of his refuge until the death of the high priest; but after the death of the high priest the slayer shall return into the land of his possession.