Hadith 663:1
Waki' narrated to us, Salama ibn Nabit narrated to us, from his father, and he had performed Hajj with the Prophet, peace and blessings of Allah be upon him, who said: "I saw him delivering the sermon on the day of Arafah while upon his camel."
حدثنا وكيع، حدثنا سلمة بن نبيط، عن أبيه، وكان قد حج مع النبي صلى الله عليه وسلم، قال: " رأيته يخطب يوم عرفة على بعيره "