Leviticus 25:32-33

³²'As to cities of the Levites — houses of the cities of their possession — redemption age-during is to the Levites;

³³as to him who redeemeth from the Levites, both the sale of a house and the city of his possession have gone out in the jubilee, for the houses of the cities of the Levites are their possession in the midst of the sons of Israel.