Charles Ellicott Commentary Leviticus 25:26

"And if a man have no one to redeem it, and he be waxed rich and find sufficient to redeem it;" — Leviticus 25:26 (ASV)

And if the man have none to redeem it. —However, if he has no nearest of kin, or if his nearest of kin is himself too poor to perform this duty, which is his responsibility, and himself be able to redeem it, that is, after he was compelled by severe poverty to sell the property, and he has since become prosperous enough to redeem it himself; although not explicitly stated, it is implied that under these changed circumstances, he is obligated to redeem his patrimony himself. According to the canonical law, however, he must not borrow money to redeem it.