Leviticus 25:48-52

48after he is sold he may be redeemed. One of his brothers may redeem him,

49or his uncle or his uncle’s son may redeem him, or anyone who is a close relative to him from his family may also redeem him. Or if he has grown rich, he may redeem himself.

50He is to calculate with the one who bought him, from the year that he sold himself to the Year of Jubilee, and the price of his sale will be in proportion to the number of years. Like the days of a hired worker it will be with him.

51If there are still many years, in proportion to those he is to reimburse the price of his redemption from his purchase price.

52If there remain only a few years until the Year of Jubilee, then he shall calculate with him in proportion to his years of service he is to reimburse the price of his redemption.