1-Teknonym and Title.2-Children.3-Characteristics.3.1-Worship.3.2-Knowledge.4-Connection with Imams (a).5-His Defense of Twelver Shia School.6-Scientific Activities.6.1-Written Works.7-Teachers.8-Students.9-Services.10-In the Views of Great Personalities.11-Demise.12-Tomb.13-Notes.14-References.