Hirmas bin Ziyad (may Allah be pleased with him) says: I was a small boy, and my father had seated me behind him on his mount. I saw the Prophet (peace and blessings be upon him) delivering a sermon at Mina on the day of Eid al-Adha, on his she-camel.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9616