used by different Shia factions to both attack and defend extreme Shia groups. According to these traditions, Ali first exiled him for declaring Ali as God and himself as prophet. But when he did not stop from his incorrect belief, Ali killed him and then burned his corpse. Shia scholars such as Abu Muhammad al-Hasan bin Musa al-Nawbakhti, Abu Amr bin Abdul Aziz al-Kash-shi, Al-Hasan bin Ali al-Hilly, al-Astra Abadi,Al-Sadooq, and Al-Nawbakhty talked about the stories and narrations of Ibn Saba. Al-Maamiqaaniy has asserted the existence of Abd Allah ibn Saba'. It is narrated different traditions from Shia Imams in the book about the belief of Abd Allah ibn Saba' (i.e. divinity of Ali and prophethood of himself), and also cursing of him by different Shia Imams. One such example includes: After narrating the traditions of Shia Imams which say that Abd Allah ibn Saba' was a cursed person who believed that Ali is God, about him, says: Shia scholars have said that "Some knowledgeable people" in the saying of Kashshi refers to those Sunni scholars that wrongly attributed the founding of Shia beliefs to Abd Allah ibn Saba', based on the invented tales of Sayf ibn Umar about whom Sunni eminent scholars like al-Dhahabi, Haakim, Ibn Habban, etc. have said that was a hadith fabricator, liar and also a (atheist). Al-Maamqaani from his work Tanqih al-Maqaal Fi Ilm al-Rijaal (2/183-184): From Sa'd ibn Abd Allah al-Ash'ari al-Qummi who was speaking of the Sab'iyyah (in al-Maqaalaat wal-Firaq p. 20): Regarding to this saying of Sa'd bin Abd Allah al-Ash'ari al-Qummi, Shia scholars say that he did not mention any chain of authorities nor did he mention from whom (or which book) he got the story and what his source was. Moreover, al-Ash’ari al-Qummi has narrated many traditions from Sunni authorities. al-Najjashi (d. 450) in his "al-Rijal”said that al-Ash’ari al-Qummi traveled to many places and was well known for his relation with Sunni historians and heard many stories from them. So, he surely wrote this report from what he heard from Sunnis, which was indeed based on the stories of Sayf ibn Umar. Ni'matullah al-Jazaa'iree, another of Shi'ite famous scholars from his book al-Anwaar al-Nu'maaniyyah (2/234): The first part of the saying of Ni'matullah al-Jazaa'iree is the Shia belief about Abd Allah ibn Saba' which is based on the authentic traditions. But the second part of his saying ( i.e., And