Numbers 5:7

5:7 then he shall confess his sin which he has done, and he shall make restitution for his guilt in full, and add to it the fifth part of it, and give it to him in respect of whom he has been guilty.
-World English Bible

Other Translation

5:7 Then they shall confess their sin which they have done: and he shall recompense his trespass with the principal thereof, and add unto it the fifth [part] thereof, and give [it] unto [him] against whom he hath trespassed.
-King James Version