Vayikra 25:47-48

Orthodox Jewish Bible

⁴⁷ And if a ger or toshav grow rich by thee, and thy brother that dwelleth by him grow poor, and sell himself unto the foreigner among thee, or to the eker (member) mishpachat of the ger;

⁴⁸ After that he is sold, his Geulah remains; one of his brethren may redeem him,