AN NUUR — Ayat 13

لَوْلَا جَاؤُوا عَلَيْهِ بِأَرْبَعَةِ شُهَدَاء فَإِذْ لَمْ يَأْتُوا بِالشُّهَدَاء فَأُوْلَئِكَ عِندَ اللَّهِ هُمُ الْكَاذِبُونَ

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.