Numbers 35:27-29

New Revised Standard Version, Anglicised

²⁷ and is found by the avenger of blood outside the bounds of the city of refuge, and is killed by the avenger, no blood-guilt shall be incurred. ²⁸ For the slayer must remain in the city of refuge until the death of the high priest; but after the death of the high priest the slayer may return home.

²⁹ These things shall be a statute and ordinance for you throughout your generations wherever you live.