Leviticus 25:23-25

²³The land shall not be sold for ever: for the land is mine; for ye are strangers and sojourners with me.

²⁴And in all the land of your possession ye shall grant a redemption for the land.

²⁵If thy brother be waxen poor, and hath sold away some of his possession, and if any of his kin come to redeem it, then shall he redeem that which his brother sold.