Bamidbar 35:9-11

Orthodox Jewish Bible

⁹ And Hashem spoke unto Moshe, saying,

¹⁰ Speak unto the Bnei Yisroel, and say unto them, When ye be come over the Yarden into Eretz Kena’an,

¹¹ Then ye shall appoint you arim to be arei miklat (cities of refuge) for you; that the rotze’ach may flee to there, which killeth any nefesh bishegagah (unintentionally, accidently).