Leviticus 27:20-25

²⁰and if he do not redeem the field, or if he hath sold the field to another man, it is not redeemed any more;

²¹and the field hath been, in its going out in the jubilee, holy to Jehovah as a field which is devoted; to the priest is its possession.

²²'And if the field of his purchase (which is not of the fields of his possession) one sanctify to Jehovah —

²³then hath the priest reckoned to him the amount of thy valuation unto the year of jubilee, and he hath given thy valuation in that day — a holy thing to Jehovah;

²⁴in the year of the jubilee the field returneth to him from whom he bought it, to him whose is the possession of the land.

²⁵And all thy valuation is by the shekel of the sanctuary: twenty gerahs is the shekel.