Sahih al-Bukhari Hadith 4844

I went to Abu Wail رضی اللہ عنہ to ask him (about those who had rebelled against `Ali). On that Abu Wail said, "We were at Siffin (a city on the bank of the Euphrates, the place where me battle took place between `Ali رضی اللہ عنہ and Muawiya رضی اللہ عنہما ) A man said, "Will you be on the side of those who are called to consult Allah's Book (to settle the dispute)?" `Ali رضی اللہ عنہ said, 'Yes (I agree that we should settle the matter in the light of the Qur'an)." ' Some people objected to `Ali's agreement and wanted to fight. On that Sahl bin Hunaif said, 'Blame yourselves! I remember how, on the day of Al-Hudaibiya (i.e. the peace treaty between the Prophet (ﷺ) and the Quraish pagans), if we had been allowed to choose fighting, we would have fought (the pagans). At that time `Umar رضی اللہ عنہ came (to the Prophet) and said, "Aren't we on the right (path) and they (pagans) in the wrong? Won't our killed persons go to Paradise, and theirs in the Fire?" The Prophet replied, "Yes." `Umar رضی اللہ عنہ further said, "Then why should we let our religion be degraded and return before Allah has settled the matter between us?" The Prophet (ﷺ) said, "O the son of Al-Khattab! No doubt, I am Allah's Messenger (ﷺ) and Allah will never neglect me." So `Umar رضی اللہ عنہ left the place angrily and he was so impatient that he went to Abu Bakr رضی اللہ عنہ and said, "O Abu Bakr! Aren't we on the right (path) and they (pagans) on the wrong?" Abu Bakr رضی اللہ عنہ said, "O the son of Al-Khattab! He is Allah's Messenger (ﷺ), and Allah will never neglect him." Then Sura Al-Fath (The Victory) was revealed."