A Shia Killed Sayyiduna Hussain
However, this is not true at all. The man who killed Sayyiduna Hussain (i.e. gave the death-blow) was a man by the name of Shimr bin Thil-Jawshan and he was a Shia, as recorded in both Sunni and Shia books. Shimr was part of the Shia, and then he betrayed Sayyiduna Hussain and joined Yazid’s men, giving Sayyiduna Hussain the death-blow.
To provide a solid proof of this fact (i.e. that Shimr was a Shia), we refer to the esteemed and classical Shia scholar, Al-Qummi. Al-Qummi, author of the famous book “Mafaatihul-Jinaan”, writes in his book: “I say, Shimr was in the forces of Ameer al-Mu’mineen on the Day of Siffin.” (Al-Qummi, “Safinatun-Najaat”, vol.4, p. 492, Chapter Sheen Followed by Meem)
This is the scanned reference for the reader: