It is narrated from Sayyiduna Zubair (may Allah be pleased with him), Allah the Exalted said: {وَاِذْ صَرَفْنَآ اِلَیْکَ نَفَرًا مِّنَ الْجِنِّ یَسْتَمِعُوْنَ الْقُرْاٰنَ }, this incident took place in the valley of Nakhlah, the Messenger of Allah (peace and blessings be upon him) was offering the Isha prayer {وَّاَنَّہ لَمَّا قَامَ عَبْدُ اللّٰہِ یَدْعُوْہُ کَادُوْایَکُوْنُوْنَ عَلَیْہِ لِبَدًا۔} … And indeed, the fact is that when the servant of Allah stood up, calling upon Him, they were almost about to gather upon him in layers. Imam Sufyan says: They (the jinn) gathered in layers like wool or hair.