Leviticus 25:23

21then I will command my blessing on you in the sixth year, and it shall bear fruit for the three years.

22You shall sow the eighth year, and eat of the fruits from the old store until the ninth year. Until its fruits come in, you shall eat the old store.

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.