From Sahih Bukhari (Hadith 4316):
Narrated Abu 'Is-haq:Al-Bara' was asked while I was listening, "Did you flee (before the enemy) along with the Prophet (ﷺ) on the day of (the battle of) Hunain?" He replied, "As for the Prophet, he did not (flee). The enemy were good archers and the Prophet (ﷺ) was saying, "I am the Prophet (ﷺ) undoubtedly; I am the son of `Abdul Muttalib
Reference: Bukhari 4316