Quran 24:12 — Light (Al-Noor)

When you heard it, the believing men and the believing women should have had better thoughts about themselves, and should have said, "This is obviously a big lie."

[24:11] A gang among you produced a big lie.* Do not think that it was bad for you; instead, it was good for you. Meanwhile, each one of them has earned his share of the guilt. As for the one who initiated the whole incident, he has incurred a terrible retribution.

[24:13] Only if they produced four witnesses (you may believe them). If they fail to produce the witnesses, then they are, according to GOD, liars.