Abu Ishaq reported,

I heard Bara when a man asked him, "Abu Umarah, did you flee on the day of Hunayn?"He replied, "No, by Allah, the Messenger of Allah ﷺ did not turn away. Rather, the young men among his companions, lightly equipped and without proper weapons, went out and met a people of archers, the gathered forces of Hawazin and Banu Nasr, who hardly let an arrow miss its mark. They showered them with arrows that scarcely went astray, so the companions came back toward the Prophet ﷺ, who was on his white mule, with his cousin Abu Sufyan bin Harith bin Abdul-Muttalib leading it. He dismounted, prayed for victory, and then said, 'I am the Prophet, this is no lie. I am the son of Abdul-Muttalib.' Then he arranged his companions in ranks."

Bukhari 2930

Sahih

حدثنا عمرو بن خالد الحراني حدثنا زهير

حدثنا أبو إسحاق قال

سمعت البراء وسأله رجل أكنتم فررتم يا أبا عمارة يوم حنين قال لا والله ما ولى رسول الله ﷺ ولكنه خرج شبان أصحابه وأخفاؤهم حسرا ليس بسلاح فأتوا قوما رماة جمع هوازن وبني نصر ما يكاد يسقط لهم سهم فرشقوهم رشقا ما يكادون يخطئون فأقبلوا هنالك إلى النبي ﷺ وهو على بغلته البيضاء وابن عمه أبو سفيان بن الحارث بن عبد المطلب يقود به فنزل واستنصر ثم قال أنا النبي لا كذب أنا ابن عبد المطلب ثم صف أصحابه

البخاري 2930صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Jihad and expeditions
Chapter
Whoever lined up his companions at the time of defeat, dismounted from his riding animal, and sought victory
Numbering
Darussalam 2930
Bukhari 2930