Leviticus 25:23-25

23‘The land, moreover, shall not be sold permanently, because 1the land is Mine; for 2you are only strangers and residents with Me. 24So for every 3piece of your property, you are to provide for the redemption of the land.

25‘4If a fellow countryman of yours becomes so poor that he sells part of his property, then his closest 5redeemer is to come and buy back what his relative has sold.