Leviticus 25
33 Ref as 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.
34 Ref And a field, a suburb of their cities, is not sold; for a possession age-during it `is' to them.