Leviticus 25:23-25

²³“‘The land shall not be sold in perpetuity, for the land is mine; for you are strangers and live as foreigners with me.

²⁴In all the land of your possession you shall grant a redemption for the land.

²⁵“‘If your brother becomes poor, and sells some of his possessions, then his kinsman who is next to him shall come, and redeem that which his brother has sold.