1-Teknonym and Lineage.2-Companion of three Imams.2.1-Allegiance to Imam al-Kazim (a).3-Narration of hadiths from Imamiyya narrators.4-His knowledge of hadiths and his Students.5-Position about deviant Shiite sects.5.1-Mukhtariyya and Zaydiyya.5.2-Fatahiyya.5.3-Waqifiyya and Qat'iyya.5.3.1-Abu Basir's position in the eyes of Waqifa.5.3.2-Abu Basir's position in the eyes of Qat'iyya.5.4-Abu Basir's position in the eyes of Imamiyya.5.5-Abu Basir as a Waqifi?.6-Works.7-Notes.8-References.