Leviticus 25:47-49

47“Suppose a foreigner or temporary resident becomes rich while living among you. If any of your fellow Israelites fall into poverty and are forced to sell themselves to such a foreigner or to a member of his family,

48they still retain the right to be bought back, even after they have been purchased. They may be bought back by a brother,

49an uncle, or a cousin. In fact, anyone from the extended family may buy them back. They may also redeem themselves if they have prospered.