The Luminary of Baghdad: Abū al-Thanā’ Shihāb ad-Dīn Sayyid Maḥmūd ibn ‘Abd Allāh al-Ḥusaynī al-Ālūsī Abū al-Thanā’ Shihāb ad-Dīn Sayyid Maḥmūd ibn ‘Abd Allāh al-Ḥusaynī al-Ālūsī, often simply known as Al-Allusi, stands as a towering figure in 19th-century Islamic scholarship. Born in Baghdad on December 10, 1802, into a family of considerable religious standing, his life unfolded against the backdrop of a declining Ottoman Empire and…