Leviticus 25:32-33

32As for 1cities of the Levites, the Levites have a permanent right of redemption for the houses of the cities which are their possession.

33What, therefore, 2belongs to the Levites may be redeemed and a house sale 3in the city of this possession 4reverts in the jubilee, for the houses of the cities of the Levites are their possession among the sons of Israel.