Leviticus 25:28
25:28 If he has not prospered enough to refund a balance to him, then what he sold will belong to the one who bought it until the jubilee year, but it must revert in the jubilee and the original owner may return to his property.
Leviticus 25:33
25:33 Whatever someone among the Levites might redeem – the sale of a house which is his property in a city – must revert in the jubilee, because the houses of the cities of the Levites are their property in the midst of the Israelites.