Sayyidah Umm al-Husayn al-Ahmasiyyah (may Allah be pleased with her) said: I saw the Messenger of Allah (peace and blessings be upon him) delivering a sermon at Mina. He (peace and blessings be upon him) had wrapped himself in his garment, and the muscle of his upper arm (peace and blessings be upon him) was quivering, and he (peace and blessings be upon him) was saying: "O people, fear Allah, and listen and obey; even if a mutilated Abyssinian slave is appointed as your ruler, still listen and obey, so long as he establishes among you the Book of Allah Almighty."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21839