Cross reference
Leviticus 27:22
22 And if a man gives to the Lord a field which he has got for money from another, which is not part of his heritage;
Leviticus 25:10
10 And let this fiftieth year be kept holy, and say publicly that everyone in the land is free from debt: it is the Jubilee, and every man may go back to his heritage and to his family.
Leviticus 25:25
25 If your brother becomes poor, and has to give up some of his land for money, his nearest relation may come and get back that which his brother has given up.