مروان بن الحكم
Abu Dharr had begun his agitation in Medina after Uthman had given 500,000 dirhams to Marwan I, 300,000 to al-Harith ibn al-Hakam, and 100,000 to the Medinan Zayd ibn Thabit from the "khums" of the booty seized in Ifriqiya in 27/647. He then quoted relevant Qur'anic passages threatening the hoarders of riches with hell-fire. Marwan complained to Uthman, who sent his servant Natil to warn Abu Dhar, but to no avail. Uthman displayed patience for some time until, in the presence of the caliph, Abu Dhar launched an angry verbal attack on Ka'ab al-Ahbar, who had backed Uthman's free use of public money. Uthman now chided Abu Dhar and sent him to Damascus.