Sahih al-Bukhari 3232
Narrated Abu 'Is-haq-Ash-Shaibani:
I asked Zir bin Hubaish regarding the Statement of Allah: "And was at a distance Of but two bowlengths 
Or (even) nearer; So did (Allah) convey The Inspiration to His slave (Gabriel) and then he 
(Gabriel) Conveyed (that to Muhammad). (53.9-10) On that, Zir said, "Ibn Mas`ud informed us that 
the Prophet (ﷺ) had seen Gabriel having 600 wings."
حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا أَبُو عَوَانَةَ، حَدَّثَنَا أَبُو إِسْحَاقَ الشَّيْبَانِيُّ، قَالَ سَأَلْتُ زِرَّ بْنَ حُبَيْشٍ عَنْ قَوْلِ اللَّهِ، تَعَالَى ‏{‏فَكَانَ قَابَ قَوْسَيْنِ أَوْ أَدْنَى * فَأَوْحَى إِلَى عَبْدِهِ مَا أَوْحَى‏}‏‏.‏ قَالَ حَدَّثَنَا ابْنُ مَسْعُودٍ أَنَّهُ رَأَى جِبْرِيلَ لَهُ سِتُّمِائَةِ جَنَاحٍ‏.‏