According to some
hadiths, he debated
Zayd ibn Ali with regard to the
Imamate of al-Sadiq. Also his debates with
Abu Hanifa, Ibn Abi Khidra, Dahhak Shadi from
Khawarij, Ibn Abi l-'Awja', and others are cited. It is said that al-Dahhak, from the
Kharijites, went in revolt in Kufa and controlled it. Al-Dahhak headed their movements and called himself the
Commander of the faithful. Mu'min al-Taq turned to him and said: "Surely I am a man with knowledge of my religion. I have heard that you describe justice, so I would like to enter (a debate) with you." Al-Dahhak was happy at that and regarded it as a victory for him, so he said to his companions: "Certainly, if this (Mu'min al-Taq) enter (a debate) with you, he will benefit you." Mu'min al-Taq approached al-Dahhak and asked him the following question: • Why did you renounce
Ali ibn Abi Talib? • Because he
appointed someone as arbitrator in respect with the religion of Allah. • Do you regard as lawful killing him or fighting him who appoints someone as arbitrator in respect with the religion of Allah? • Yes? • Tell me about the religion on which I have come to debate with you: If my demonstration overcomes yours or yours overcomes mine, then who will draw the attention of the mistaken to his mistake and decide the rightness of the right? Therefore, we have no escape from that we must appoint someone to decide between us. • This-he indicated with his hand to a companion of his-is the arbitrator between us; he has knowledge of the religion. Mu'min al-Taq found a way to criticize him and to abolish his beliefs, saying to him: • Have you appointed this person as an arbitrator in respect with the religion on which I have to debate with you? • Yes. Mu'min al-Taq came near to the Kharijites and showed them the mistakes of their leader, saying to them: "Surely, your leader has appointed someone as an arbitrator in respect with Allah's religion; then that is up to you!" The Kharijites attacked al-Dahhak and cut him into pieces with their own swords. ==Works==