Surah Al-Ahqaf (The Sand-Hills), Verse 29

وَاِذْ صَرَفْنَاۤ اِلَیْكَ نَفَرًا مِّنَ الْجِنِّ یَسْتَمِعُوْنَ الْقُرْاٰنَ فَلَمَّا حَضَرُوْهُ قَالُوْۤا اَنْصِتُوْا فَلَمَّا قُضِیَ وَلَّوْا اِلٰی قَوْمِهِمْ مُّنْذِرِیْنَ ۟

Wa iz sarafinaaa ilaika nafaram minal jinni yastami'oonal Quraana falammaa hadaroohu qaalooo ansitoo falammaa qudiya wallaw ilaa qawmihim munzireen

“Behold, We turned towards thee a company of Jinns (quietly) listening to the Qur'an: when they stood in the presence thereof, they said, "Listen in silence!" When the (reading) was finished, they returned to their people, to warn (them of their sins).”

Quran 46:29 (Yusuf Ali Translation)