Leviticus 25:49

46 and ye have taken them for inheritance to your sons after you, to occupy for a possession; to the age ye lay service upon them, but upon your brethren, the sons of Israel, one with another, thou dost not rule over him with rigour.

47 `And when the hand of a sojourner or settler with thee attaineth riches, and thy brother with him hath become poor, and he hath been sold to a sojourner, a settler with thee, or to the root of the family of a sojourner,

48 after he hath been sold, there is a right of redemption to him; one of his brethren doth redeem him,

49 or his uncle, or a son of his uncle, doth redeem him, or any of the relations of his flesh, of his family, doth redeem him, or--his own hand hath attained--then he hath been redeemed.

50 `And he hath reckoned with his buyer from the year of his being sold to him till the year of jubilee, and the money of his sale hath been by the number of years; as the days of an hireling it is with him.

51 `If yet many years, according to them he giveth back his redemption money, from the money of his purchase.

52 `And if few are left of the years till the year of jubilee, then he hath reckoned with him, according to his years he doth give back his redemption money;