Leviticus 25:25, 49

If thy brother be waxed poor, and sell some of his possession, then shall his kinsman that is next unto him come, and shall redeem that which his brother hath sold.

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.