Leviticus 6:4-5

4if he has sinned and has realized his guilt and will restore awhat he took by robbery or what he got by oppression or the deposit that was committed to him or the lost thing that he found 5or anything about which he has sworn falsely, he shall brestore it in full and shall add a fifth to it, and give it to him to whom it belongs on the day he realizes his guilt.

Leviticus 27:13

13 cBut if he wishes to redeem it, he shall add a dfifth to the valuation.

Leviticus 27:15

15 eAnd if the donor wishes to redeem his house, he shall add a ffifth to the valuation price, and it shall be his.

Leviticus 27:27

27And if it is an unclean animal, then he shall buy it back at the valuation, gand add a fifth to it; or, if it is not redeemed, it shall be sold at the valuation.

Leviticus 27:31

31If a man wishes to redeem some of his tithe, he shall add a fifth to it.

Numbers 5:7

7 hhe shall confess his sin that he has committed.
Hebrew they shall confess their sin that they have committed
jAnd he shall make full restitution for his wrong, adding a fifth to it and giving it to him to whom he did the wrong.
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