النّور — An-Nur Ayat 16
وَلَوْلَآ اِذْ سَمِعْتُمُوْهُ قُلْتُمْ مَّا يَكُوْنُ لَنَآ اَنْ نَّتَكَلَّمَ بِهٰذَاۖ سُبْحٰنَكَ هٰذَا بُهْتَانٌ عَظِيْمٌ
Wa lau lā iż sami‘tumūhu qultum mā yakūnu lanā an natakallama bihāżā, subḥānaka hāżā buhtānun ‘aẓīm(un).
"And why, when you heard it, did you not say, "It is not for us to speak of this. Exalted are You, [O Allah]; this is a great slander"?"