إِذْ تَلَقَّوْنَهُ بِأَلْسِنَتِكُمْ وَتَقُولُونَ بِأَفْوَاهِكُم مَّا لَيْسَ لَكُم بِهِ عِلْمٌ وَتَحْسَبُونَهُ هَيِّنًا وَهُوَ عِندَ اللَّهِ عَظِيمٌ
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سورة النّور
(24/15) You were telling (asking) it (slander) with your tongues (and passed it around) and uttered with your mouths that of which you had no knowledge, and you deemed it an unimportant matter, while with Allah it was very great (crime).
Surah An-Nur