References: <br />1. Historical Perspective, by Alexander Knysh, page 213<br />2. Empire of the Mahdi by Heinz Halm<br />3. The Book of Government; or, Rules for Kings, by Niẓām al-Mulk<br />4. Al-Radd 'ala-I-Isma'iliyya by Ibn Rizam<br />5. Interactions in The Islamic World: The Ismaili Thread, edited by Orkhan Mir-Kasimov<br /><br />This is the story about how Abu Tahir al-Qarmati attacked Mecca and stole the Black Stone from the Kaaba.
