Sahih al-Bukhari 3966
Narrated Abu Dhar:
The following Holy Verse:-- 
"These two opponents (believers & disbelievers) dispute with each other about their Lord," 
(22.19) was revealed concerning six men from Quraish, namely, `Ali, Hamza, 'Ubaida bin Al-Harith; 
Shaiba bin Rabi`a, `Utba bin Rabi`a and Al-Walid bin `Utba.
حَدَّثَنَا قَبِيصَةُ، حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي هَاشِمٍ، عَنْ أَبِي مِجْلَزٍ، عَنْ قَيْسِ بْنِ عُبَادٍ، عَنْ أَبِي ذَرٍّ ـ رضى الله عنه ـ قَالَ نَزَلَتْ ‏{‏هَذَانِ خَصْمَانِ اخْتَصَمُوا فِي رَبِّهِمْ‏}‏ فِي سِتَّةٍ مِنْ قُرَيْشٍ عَلِيٍّ وَحَمْزَةَ وَعُبَيْدَةَ بْنِ الْحَارِثِ وَشَيْبَةَ بْنِ رَبِيعَةَ وَعُتْبَةَ بْنِ رَبِيعَةَ وَالْوَلِيدِ بْنِ عُتْبَةَ‏.‏