Ash-Shama'il Al-Muhammadiyah 36:4

Baraa ibn Aazib radiyallahu anhu was once asked, You all deserted Rasoolullah sallallahu alaihe wasallam and ran away in the Battle of Hunayn? He replied, No, Rasoolullah sallallahu alaihe wasallam did not turn away, except a few people in the army who were in a hurry (many of whom were from the tribe of Sulaym and a few newly converted youth of Makkah) turned away when the people of the tribe of Hawaazin began to shower arrows. Rasoolullah sallallahu alaihe wasallam (with whom there naturally were the great Sahaabah radiyallahu anhum) was riding a mule Abu Sufyan ibn Al-Haarith ibn Abdul Muttalib radiyallahu anhu was leading it by its reins. Sayyidina Rasoolullah sallallahu alaihe wasallam was reciting the following couplet:

Verily, without doubt I am a Prophet. I am from the children (grandsons) of Abdul Muttalib