Leviticus 25:29-31

And if a man sell a dwelling house in a walled city, then he may redeem it within a whole year after it is sold; within a full year may he redeem it.

If a man sell a dwelling house. All sales of houses were subject to the same condition. But there was a difference between the houses in villages, which, being connected with agriculture, were treated as parts of the land, and houses possessed by trading people or foreigners in walled towns, which could only be redeemed within the year after the sale; if not then redeemed, these did not revert to the former owner at the Jubilee. 'This circumstance,' says Graves, 'must have given property in the country a decided preference above property in cities, and have tended to induce every Jew to reside on and improve his land, and employ his time in the care of flocks and agriculture; which, as they had been the occupation of those revered patriarchs from whom the Jews descended, were with them the most honourable of all employments.'