Sahih al-Bukhari 4856
Narrated `Abdullah:
Regarding the Verses: 'And was at a distance of but two bow-lengths or (even) nearer; So did (Allah) 
convey the Inspiration to His slave (Gabriel) and then he Gabriel) conveyed (that to Muhammad...' 
(53.9-10) Ibn Mas`ud narrated to us that the Prophet (ﷺ) had seen Gabriel with six hundred wings.
حَدَّثَنَا أَبُو النُّعْمَانِ، حَدَّثَنَا عَبْدُ الْوَاحِدِ، حَدَّثَنَا الشَّيْبَانِيُّ، قَالَ سَمِعْتُ زِرًّا، عَنْ عَبْدِ اللَّهِ، ‏{‏فَكَانَ قَابَ قَوْسَيْنِ أَوْ أَدْنَى * فَأَوْحَى إِلَى عَبْدِهِ مَا أَوْحَى‏}‏ قَالَ حَدَّثَنَا ابْنُ مَسْعُودٍ أَنَّهُ رَأَى جِبْرِيلَ لَهُ سِتُّمِائَةِ جَنَاحٍ‏.‏