Numbers 35:2-4

Young's Literal Translation

² `Command the sons of Israel, and they have given to the Levites of the inheritance of their possession cities to inhabit; also a suburb for the cities round about them ye do give to the Levites.

³ And the cities have been to them to inhabit, and their suburbs are for their cattle, and for their goods, and for all their beasts.

⁴ `And the suburbs of the cities which ye give to the Levites [are], from the wall of the city and without, a thousand cubits round about.