Yahya related to me from Malik that Abu'n Nadr, the mawla of Umaribn Ubaydullah, said that the Messenger of Allah, may Allah bless himand grant him peace, said, when Uthman ibn Madhun's funeral processionpassed by him, "You have gone and you were not involved in any of it."
USC-MSA web (English) reference: Book 16, Hadith 56
Arabic reference: Book 16, Hadith 578