Sahih Bukhari | Volume 5 | Hadith Number 305

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.