Jami at Tirmidhi 1706

حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى النَّيْسَابُورِيُّ، حَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ، حَدَّثَنَا يُونُسُ بْنُ أَبِي إِسْحَاق، عَنْ الْعَيْزَارِ بْنِ حُرَيْثٍ، عَنْ أُمِّ الْحُصَيْنِ الْأَحْمَسِيَّةِ، قَالَتْ:‏‏‏‏ سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَخْطُبُ فِي حَجَّةِ الْوَدَاعِ، ‏‏‏‏‏‏وَعَلَيْهِ بُرْدٌ قَدِ الْتَفَعَ بِهِ مِنْ تَحْتِ إِبْطِهِ، ‏‏‏‏‏‏قَالَتْ:‏‏‏‏ فَأَنَا أَنْظُرُ إِلَى عَضَلَةِ عَضُدِهِ تَرْتَجُّ، ‏‏‏‏‏‏سَمِعْتُهُ يَقُولُ:‏‏‏‏ يَا أَيُّهَا النَّاسُ، ‏‏‏‏‏‏اتَّقُوا اللَّهَ، ‏‏‏‏‏‏وَإِنْ أُمِّرَ عَلَيْكُمْ عَبْدٌ حَبَشِيٌّ مُجَدَّعٌ، ‏‏‏‏‏‏فَاسْمَعُوا لَهُ، ‏‏‏‏‏‏وَأَطِيعُوا مَا أَقَامَ لَكُمْ كِتَابَ اللَّهِ ، ‏‏‏‏‏‏قَالَ أَبُو عِيسَى:‏‏‏‏ وَفِي الْبَاب، ‏‏‏‏‏‏عَنْ أَبِي هُرَيْرَةَ، ‏‏‏‏‏‏وَعِرْبَاضِ بْنِ سَارِيَةَ، ‏‏‏‏‏‏وَهَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ، ‏‏‏‏‏‏وَقَدْ رُوِيَ مِنْ غَيْرِ وَجْهٍ عَنْ أُمِّ حُصَيْنٍ.

Narrated Umm Al-Husain Al-Ahmasiyyah: I heard the Messenger of Allah (ﷺ) delivering Khutbah during the farewell Hajj, and he was wearing a Burd which he had wrapped from under his armpit. She said: I was look at muscle of his upper arm quivering and I heard him saying: O you people! Have Taqwa of Allah. If a mutilated Ethiopian slave is put in command over you, then listen to him and obey him, as long as he upholds the Book of Allah among you.' [Abu 'Eisa said:] There are narrations on this topic from Abu Hurairah and 'Irbad bin Sariyah. This Hadith is Hasan Sahih, it has been reported through other routes from Umm Husain.