(7) باب عُقُوبَةِ مَنْ يَأْمُرُ بِالْمَعْرُوفِ وَلاَ يَفْعَلُهُ وَيَنْهَى عَنِ الْمُنْكَرِ وَيَفْعَلُهُ
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.
Reference: Sahih Muslim 2989 b
In-book reference: Book 55, Hadith 67
USC-MSA web (English) reference(deprecated numbering scheme): Book 42, Hadith 7123