Leviticus 22:14
"'If a man eats something holy unwittingly, then he shall add the fifth part of its value to it, and shall give the holy thing to the priest.
Leviticus 27:13
But if he will indeed redeem it, then he shall add the fifth part of it to its valuation.
Leviticus 27:15
If he who dedicates it will redeem his house, then he shall add the fifth part of the money of your valuation to it, and it shall be his.
Leviticus 5:15-19
"If anyone commits a trespass, and sins unwittingly, in the holy things of Yahweh; then he shall bring his trespass offering to Yahweh, a ram without blemish from the flock, according to your estimation in silver by shekels, after the shekel of the sanctuary, for a trespass offering.