Author: Fakhr al-Dīn Muḥammad ibn ʻUmar Rāzī
Alternate names: Fakhr al-Dīn Muḥammad ibn ʻUmar Razī; Fakhr al-Din Muhammad ibn `Umar Razi; Fakhr al-Din Muhammad ibn 'Umar Razi
Born: 1149 or 50
Died: 1210