Leviticus 25:10, 13, 28

Make the fiftieth year a special year, and announce freedom for all the people living in your country. This time will be called Jubilee. You will each go back to your own property, each to your own family and family group.

In the year of Jubilee you each must go back to your own property.

But if there is not enough money to buy it back, the one who bought it will keep it until the year of Jubilee. During that celebration, the land will go back to the first owner’s family.