I was with my father Aqram at al-Qaa when a group of riders passed by us and made their camels kneel at the side of the road. My father said to me, "Son, stay with your young camels while I go to these people and ask them who they are."He set out, and I followed behind him. There was the Messenger of Allah ﷺ. The time for prayer came, so I prayed with him, and every time he prostrated I could see the whiteness of the Messenger of Allah's ﷺ underarms.
حدثنا وكيع قال حدثنا داود بن قيس
كنت مع أبي أقرم بالقاع قال فمر بنا ركب فأناخوا بناحية الطريق فقال لي أبي أي بني كن في بهمك حتى آتي هؤلاء القوم وأسائلهم قال فخرج وخرجت في أثره فإذا رسول الله ﷺ قال فحضرت الصلاة فصليت معه فكنت أنظر إلى عفرتي إبطي رسول الله ﷺ كلما سجد