Leviticus 25:23-26

²³Land must not be permanently sold, because it really belongs to me. To me you are only foreigners and travelers passing through.

²⁴So whatever land you buy to own, you must make arrangements so it can be returned to its original owner.

²⁵If one of your people becomes poor and sells you some of their land, their close family can come and buy back what they have sold.

²⁶However, if they don't have anyone who can buy it back, but in the meantime their financial situation improves and they have enough to buy back the land,