Leviticus 25:27
Then let him count the years of the sale thereof, and restore the overplus unto the man to whom he sold it; that he may return unto his possession.
Leviticus 25:50
And he shall reckon with him that bought him from the year that he was sold to him unto the year of jubile: and the price of his sale shall be according unto the number of years, according to the time of an hired servant shall it be with him.
Deuteronomy 18:8
They shall have like portions to eat, beside that which cometh of the sale of his patrimony.