Mishkat al-Masabih

Rafi‘ b. ‘Amr al-Muzani said: I saw God’s messenger on a greyish she-mule addressing the people at Mina in the forenoon, while ‘Ali was repeating (He was repeating this for the benefit of those who were too far away to hear the Prophet) what he said, and some of the people were standing and others sitting. Abu Dawud transmitted it.