Leviticus 25:29-34

29And if a man shall sell a dwelling house in a walled city, then he may redeem it within a whole year after it is sold; within a full year may he redeem it. 30And if it shall not be redeemed within the space of a full year, then the house that is in the walled city shall be established for ever to him that bought it throughout his generations: it shall not go out in the jubilee. 31But the houses of the villages which have no walls around them shall be counted as the fields of the country: they may be redeemed, and they shall go out in the jubilee.1 32However the cities of the Levites, and the houses of the cities of their possession, may the Levites redeem at any time. 33And if a man shall purchase of the Levites, then the house that was sold, and the city of his possession, shall go out in the year of jubilee: for the houses of the cities of the Levites are their possession among the children of Israel.2 34But the field of the common land of their cities may not be sold; for it is their perpetual possession.