Surah An-Nur (The Light), Verse 15

اِذْ تَلَقَّوْنَهٗ بِاَلْسِنَتِكُمْ وَتَقُوْلُوْنَ بِاَفْوَاهِكُمْ مَّا لَیْسَ لَكُمْ بِهٖ عِلْمٌ وَّتَحْسَبُوْنَهٗ هَیِّنًا وَّهُوَ عِنْدَ اللّٰهِ عَظِیْمٌ ۟

Iz talaqqawnahoo bi alsinatikum wa taqooloona bi afwaahikum maa laisa lakum bihee 'ilmunw wa tahsaboo nahoo haiyinanw wa huwa 'indal laahi 'azeem

“Behold, ye received it on your tongues, and said out of your mouths things of which ye had no knowledge; and ye thought it to be a light matter, while it was most serious in the sight of Allah.”

Quran 24:15 (Yusuf Ali Translation)