وَعَن رافعِ بنِ عمروٍ والمُزَني
قَالَ: رَأَيْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَخْطُبُ النَّاسَ بِمِنًى حِينَ ارْتَفَعَ الضُّحَى عَلَى بَغْلَةٍ شَهْبَاءَ وَعَلِيٌّ يُعَبِّرُ عَنْهُ وَالنَّاسُ بَين قَائِم وقاعد
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 (sallallahu alayhi wa sallam)) what he said, and some of the people were standing and others sitting.
Mishkat al-Masabih 2560, Book 11, The Rites of Pilgrimage, Hadith 162. 1 min read