Leviticus 25:49-51

American Standard Version

⁴⁹ or his uncle, or his uncle’s son, may redeem him, or any that is nigh of kin unto him of his family may redeem him; or if he be waxed rich, he may redeem himself. ⁵⁰ And he shall reckon with him that bought him from the year that he sold himself to him unto the year of jubilee: and the price of his sale shall be according unto the number of years; according to the time of a hired servant shall he be with him. ⁵¹ If there be yet many years, according unto them he shall give back the price of his redemption out of the money that he was bought for.