كتاب الزهد والرقائق
55  
The Book of Zuhd and Softening of Hearts
(7)
Chapter: About The One Who Enjoins Good But Does Not Do It, And Forbids Evil But Does It
(7)
باب عُقُوبَةِ مَنْ يَأْمُرُ بِالْمَعْرُوفِ وَلاَ يَفْعَلُهُ وَيَنْهَى عَنِ الْمُنْكَرِ وَيَفْعَلُهُ
Sahih Muslim 2989 b

Abu Wa'il reported:

I was in the company of Usama b. Zaid that a person said: What prevents you to visit Uthman and talk to him for what he does? The rest of the hadith is the same.
حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا جَرِيرٌ، عَنِ الأَعْمَشِ، عَنْ أَبِي وَائِلٍ، قَالَ كُنَّا عِنْدَ أُسَامَةَ بْنِ زَيْدٍ فَقَالَ رَجُلٌ مَا يَمْنَعُكَ أَنْ تَدْخُلَ عَلَى عُثْمَانَ فَتُكَلِّمَهُ فِيمَا يَصْنَعُ وَسَاقَ الْحَدِيثَ بِمِثْلِهِ ‏.‏
Reference : Sahih Muslim 2989b
In-book reference : Book 55, Hadith 67
USC-MSA web (English) reference : Book 42, Hadith 7123
  (deprecated numbering scheme)