قُلْ أُوحِىَ إِلَىَّ أَنَّهُ ٱسْتَمَعَ نَفَرٌ مِّنَ ٱلْجِنِّ فَقَالُوٓا۟ إِنَّا سَمِعْنَا قُرْءَانًا عَجَبًا
Qul oohiya ilaiya annna hustama'a nafarum minal jinnni faqaalooo innaa sami'naa quraanan 'ajabaa
(اے پیغمبر لوگوں سے) کہہ دو کہ میرے پاس وحی آئی ہے کہ جنوں کی ایک جماعت نے (اس کتاب کو) سنا تو کہنے لگے کہ ہم نے ایک عجیب قرآن سنا
Say: it has been revealed to me that a group of the jinn listened in and said, 'We have heard a wondrous recitation
The Prophet learns of this audience by revelation, without having seen it: the verse is the report reaching him, and the whole surah after it is quoted speech he is told to pass on. Nafar names a small band, classically somewhere between three and ten, and the verb for their listening is the deliberate form, attention paid on purpose.