Reference for Numbers 5:7

וְהִתְוַדּ֗וּ אֶֽת־חַטָּאתָם֮ אֲשֶׁ֣ר עָשׂוּ֒ וְהֵשִׁ֤יב אֶת־אֲשָׁמוֹ֙ בְּרֹאשׁ֔וֹ וַחֲמִישִׁת֖וֹ יֹסֵ֣ף עָלָ֑יו וְנָתַ֕ן לַאֲשֶׁ֖ר אָשַׁ֥ם לֽוֹ׃

then they shall confess their sin which they have done; and he shall make restitution for his guilt in full, and add unto it the fifth part thereof, and give it unto him in respect of whom he hath been guilty.