(a) Isma'il says: I saw Abu Kahil (may Allah be pleased with him); he said: I saw the Messenger of Allah (peace and blessings be upon him) delivering a sermon on a she-camel that had a nose-ring, and an Abyssinian slave was holding it.
(b) Mughirah bin Shu'bah (may Allah be pleased with him) says that the Prophet (peace and blessings be upon him) delivered the sermon on the day of Eid on his mount, and Abu Mas'ud al-Ansari (may Allah be pleased with him) says that the Prophet (peace and blessings be upon him) delivered the sermon on the day of Eid on his mount.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة العيدين / 6209