Ammar b. Yasir is among the greatest Companions and earliest in embracing Islam. After the holy prophet (p.b.u.h) he was a true Shiite known as one of the Shiite authorities. A lot of works have been published concerning Ammar. However, his character in terms of Hadith and Quranic commentary has not been dealt with up to now. Since Ammar is an authoritative narrator according to Shiite and Sunni schools both, there has been left a considerable heritage of Hadith from him in the Shiite and Sunni Hadith collections. However, the number of Hadiths handed down from Ammar in the Shiite collections is fewer than those in Sunni ones. Indicating the sources of Ammar’s traditions, the present article deals with the causes of further interest and concern of earlier Sunni scholars in his Hadiths comparing to Shiite traditionists. Furthermore, the contents of Ammar’s traditions are analyzed. The main contents of Ammar’s traditions can be categorized as follows: the life and biographical reports of the holy prophet (p.b.u.h), virtues of Ahl al-Bayt (p.b.u.t), history of Ahl al-Bayt, prophecies of battles and seditions of the End of Time, signs of the reappearance of Imam Mahdi, exegesis of the Quran and Jurisprudential issues.
)