Quran 24:5 — Light (Al-Noor)

If they repent afterwards and reform, then GOD is Forgiver, Merciful.

[24:4] Those who accuse married women of adultery, then fail to produce four witnesses, you shall whip them eighty lashes, and do not accept any testimony from them; they are wicked.

[24:6] As for those who accuse their own spouses, without any other witnesses, then the testimony may be accepted if he swears by GOD four times that he is telling the truth.