Leviticus 27:19

And if he who dedicates the field wishes to redeem it, then he shall add a fifth to its valuation price , and it shall remain his .

If the one who dedicates the field wishes to redeem it, they must add a fifth to its value, and the field will again become theirs.

And if he that sanctified the field will in any wise redeem it, then he shall add the fifth part of the money of thy estimation unto it, and it shall be assured to him.