Al-Shaykh Muhammad Ridha Al-Mudhaffar

Muhammad Rida al-Muzaffar (Arabic: محمد رضا المظفر‎)was a Shia Marja', philosopher and jurist. His eminent book in Islamic sciences is Usul al-Fiqh or the principles of jurisprudence written according to the thought school of Agha Shaykh Muhammad Hosein Isfahani, one of the eminent Shia Marja's.