„Husayn ibn Ali“. Encyclopædia Britannica. — „Al-Ḥusayn ibn ʿAlī, (born January 626, Medina, Arabia [now in Saudi Arabia]—died October 10, 680, Karbalāʾ, Iraq), hero in Shiʿi Islam, grandson of the Prophet Muhammad through his daughter Fāṭima and son-in-law ʿAlī (the first Imam of the Shi'a and the fourth of the Sunni Rashidun caliphs).“.