The Book of the Merits of the Companions
حَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ مُعَاذٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا شُعْبَةُ، عَنْ سَعْدِ بْنِ إِبْرَاهِيمَ، بِهَذَا الإِسْنَادِ . مِثْلَهُ غَيْرَ أَنَّ فِي الْحَدِيثِ قَالَ سَعْدٌ فِي بَعْضِ هَذَا فِيمَا أَعْلَمُ .This hadith has been transmitted on the authority of Sa'd b. Ibrahim with a slight variation of wording
From Sahih Muslim, whose reports the scholars accept as authentic.