But if he cannot obtain enough to repay him, what he sold will remain in possession of the buyer until the Year of Jubilee. In the Jubilee, however, it is to be released, so that he may return to his property.

Leviticus 25:10
So you are to consecrate the fiftieth year and proclaim liberty in the land for all its inhabitants. It shall be your Jubilee, when each of you is to return to his property and to his clan.

Leviticus 25:13
In this Year of Jubilee, each of you shall return to his own property.

Leviticus 25:29
If a man sells a house in a walled city, he retains his right of redemption until a full year after its sale; during that year it may be redeemed.

Leviticus 25:30
If it is not redeemed by the end of a full year, then the house in the walled city is permanently transferred to its buyer and his descendants. It is not to be released in the Jubilee.

But if he be not able to restore it to him, then that which is sold shall remain in the hand of him that has bought it until the year of jubilee: and in the jubilee it shall go out, and he shall return to his possession.