Numbers 35:9-11

Young's Literal Translation

⁹ And Jehovah speaketh unto Moses, saying,

¹⁰ `Speak unto the sons of Israel, and thou hast said unto them, When ye are passing over the Jordan to the land of Canaan,

¹¹ and have prepared to yourselves cities -- cities of refuge they are to you -- then fled thither hath a man-slayer, smiting a person unawares,