وَحَدَّثَنَاهُ أَحْمَدُ بْنُ عُثْمَانَ النَّوْفَلِيُّ، حَدَّثَنَا أَبُو دَاوُدَ، حَدَّثَنَا شُعْبَةُ، بِهَذَا الإِسْنَادِ نَحْوَهُ .
This hadith has been narrated on the authority of Shu'ba with the same chain of transmitters.
Sahih Muslim · The Book of Emancipating Slaves