Surah An-Nur, ayah 15

24:15

إِذۡ تَلَقَّوۡنَهُۥ بِأَلۡسِنَتِكُمۡ وَتَقُولُونَ بِأَفۡوَاهِكُم مَّا لَيۡسَ لَكُم بِهِۦ عِلۡمٞ وَتَحۡسَبُونَهُۥ هَيِّنٗا وَهُوَ عِندَ ٱللَّهِ عَظِيمٞ ١٥

Idh talaqqawnahū bi alsinatikum wataqūlūna bi afwāhikum mā laysa lakum bihī 'ilmun watahsabūnahū hayyinan wahuwa 'indallāhi 'azīm

When you received it with your tongues980 and said with your mouths that of which you had no knowledge and thought it was insignificant while it was, in the sight of Allāh, tremendous.

Footnotes

980 Rather than your ears, i.e., not thinking about what you had heard but hastening to repeat it carelessly.