Sahih Bukhari
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Volume: 005 / Book Number: 059 / Hadith Number: 607
Narrated Abu Ishaq:
That he heard Al-Bara narrating when a man from Qais (tribe) asked him "Did you flee leaving Allah's Apostle on the day (of the battle) of Hunain?" Al-Bara' replied, "But Allah's Apostle did not flee. The people of Hawazin were good archers, and when we attacked them, they fled. But rushing towards the booty, we were confronted by the arrows (of the enemy). I saw the Prophet riding his white mule while Abu Sufyan was holding its reins, and the Prophet was saying "I am the Prophet undoubtedly." (Israil and Zuhair said, "The Prophet dismounted from his Mule.")