Leviticus 25:13-15

¹³In this Jubilee Year, every one of you shall return to your own property.

¹⁴If you sell land to your neighbor, or buy land from him, don't exploit one another.

¹⁵When you buy from your neighbor work out how many years have passed since the last Jubilee, for he is to sell to you depending on how many years of harvest remain.