1-Personality.2-The Time of the Prophet (s).3-The Time of the First Three Caliphs.4-During the Caliphate of Imam Ali (a).5-Prohibiting Imam al-Husayn (a) from Fighting.6-His Letter to Mu'awiya.7-Giving Allegiance to Yazid.8-Sunni Scholars' Viewpoint.9-Ascesis and Worship.10-Death.11-Notes.12-References.