Sahih al-Bukhari, Book 64, Hadith 346 (In-Book) ⓘ

Narrated Abu 'Is-haq: I heard Al-Bara' narrating when a man came and said to him, "O Abu '`Umara! Did you flee on the day (of the battle) of Hunain?" Al-Bara' replied, "I testify that the Prophet did not flee, but the hasty people hurried away and the people of Hawazin threw arrows at them. At that time, Abu Sufyan bin Al-Harith was holding the white mule of the Prophet by the head, and the Prophet was saying, "I am the Prophet undoubtedly: I am the son of `Abdul-Muttalib."

حَدَّثَنَا مُحَمَّدُ بْنُ كَثِيرٍ، حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي إِسْحَاقَ، قَالَ سَمِعْتُ الْبَرَاءَ، رضى الله عنه وَجَاءَهُ رَجُلٌ فَقَالَ يَا أَبَا عُمَارَةَ أَتَوَلَّيْتَ يَوْمَ حُنَيْنٍ فَقَالَ أَمَّا أَنَا فَأَشْهَدُ عَلَى النَّبِيِّ صلى الله عليه وسلم أَنَّهُ لَمْ يُوَلِّ، وَلَكِنْ عَجِلَ سَرَعَانُ الْقَوْمِ، فَرَشَقَتْهُمْ هَوَازِنُ، وَأَبُو سُفْيَانَ بْنُ الْحَارِثِ آخِذٌ بِرَأْسِ بَغْلَتِهِ الْبَيْضَاءِ يَقُولُ ‏{‏أَنَا النَّبِيُّ لاَ كَذِبْ، أَنَا ابْنُ عَبْدِ الْمُطَّلِبْ‏}‏‏.‏