High Quality Content by WIKIPEDIA articles! Ayatollah Sayed Muhammad Baqir al-Hakim (b. 1939; d. August 29, 2003) was one of the foremost Twelver Shi'a Muslim leaders in Iraq until his assassination in a bombing in Najaf. He was the son of Grand Ayatollah Muhsin al-Hakim Tabatabai and al- Hajja Fawzieh Hassan Bazzi. Al-Hakim co-founded the modern Islamic political movement in Iraq in the 1960s, along with Ayatollah Sayed Mohammed Baqir Al- Sadr, with whom he worked closely until the latter's death in 1980. Though not among the most hard-line of Islamists, Al-Hakim was seen as dangerous by the ruling Ba'ath regime, largely because of his agitation on behalf of Iraq's majority Shia population (the ruling regime was comprised mostly of Sunnis). This led to his arrest in 1972, for promoting Nikah Mut'ah, a legal form of temporary marital relationship in the Shia sect, but he was released shortly thereafter.