Surah An-Noor, Verse 13
Translation — Sahih International
Why did they [who slandered] not produce for it four witnesses? And when they do not produce the witnesses, then it is they, in the sight of Allah, who are the liars.
Source
Kur'an-ı Kerim, Nûr Suresi 24:13
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/24-suresi-13-ayet