Sahih al-Bukhari Book 65, Hadith 265
Abu Dharr used to take an oath confirming that the Verse:
'These two opponents (believers, and disbelievers) dispute with each other about their Lord.' (22.19)
was Revealed in connection with Hamza and his two companions and `Utbah and his two companions
on the day when they ease out of the battle of Badr.
Regarding the Verse: "And among men is he who worships Allah's as it were on the very edge." (22.11). A man used to come to Medina as if his wife brought a son and his mares produces offspring. He would say, "This religion (Islam) is good," but if his wife did not give birth to a child and his mares produced no offspring, he would say, "This religion is bad."
`Ali said, "I will be the first to kneel before the Beneficent on the Day of Resurrection because of the dispute." Qais said; This Verse: 'These two opponents (believers and disbelievers dispute with each other about their Lord,' (22.19) was revealed in connection with those who came out for the Battle of Badr, i.e. `Ali, Hamza, 'Ubaida, Shaiba bin Rabi`a, `Utba bin Rabi`a and Al-Walid bin `Utba.