Book 33 · Hadith 4626
وَحَدَّثَنَاهُ ابْنُ بَشَّارٍ، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، وَعَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ، عَنْ شُعْبَةَ، بِهَذَا الإِسْنَادِ وَقَالَ عَبْدًا حَبَشِيًّا .
This hadith has been transmitted on the authority of Shu'ba with the same chain of transmitters, and he said: "An Abyssinian slave."
— Sahih Muslim, Book 33: The Book on Government, Hadith #4626