Deuteronomy 19:4

This is the provision for the manslayer , who by fleeing there may save his life . If anyone kills his neighbor unintentionally without having hated him in the past —

This is the rule concerning anyone who kills a person and flees there for safety—anyone who kills a neighbor unintentionally, without malice aforethought.

And this is the case of the slayer, which shall flee thither, that he may live : Whoso killeth his neighbour ignorantly, whom he hated not in time past;