Leviticus 22:14
But if a person unknowingly eats a holy gift [which has been offered to God], then he shall add one-fifth of its value to it and give the holy gift to the priest.
Leviticus 27:13
But if he ever wishes to redeem it, then he shall add one-fifth of it to your valuation.
Leviticus 27:15
If the one who consecrates his house should wish to redeem it, then he shall add one-fifth of your valuation price to it, so that it may be his.
Leviticus 5:15-19
“If a person commits a breach of faith and sins unintentionally against the holy things of the Lord, then he shall bring his guilt offering to the Lord, a ram without blemish from the flock, valued by you in shekels of silver, that is, the shekel of the sanctuary, as a guilt offering.