Born in
Karbala, to Sayyid Muhammad al-Shirazi, and Zainab Maash, he comes from the prominent
al-Shirazi family of Shia scholars, who claim ancestry from
Zayd ibn Ali, the son of the fourth Shiite Imam,
Ali ibn Husayn. He is the great-great grandson of
Mirza Shirazi from his father's mother's side. His mother was the daughter of Muhammad-Salih Maash, a well known merchant in Karbala.
Education His education began at a very young age, he spent his basic levels of
seminary studies at the
hawza of Karbala. He then emigrated to Kuwait in 1971, along with his father and uncle due to the
Bathist pressure in Iraq, and continued to study under his uncle
Sadiq al-Shirazi and cousin
Muhammad-Taqi al-Modarresi. In 1980, he moved to
Iran and settled in
Qom. Over there he spent his advanced levels of seminary studies, and excelled quickly under his father and uncle, as well as senior religious clerics such as Grand Ayatollah
Vahid Khorasani and Mirza
Jawad Tabrizi. He gained the degree of ijtihad from his father, his uncle Grand Ayatollah Sadiq al-Shirazi, Grand Ayatollah Muhammad al-Fatimi al-Abhari, Grand Ayatollah
Yadollah Duzduzani, Grand Ayatollah
Jafar Sobhani, Ayatollah Ahmed Shahristani, Ayatollah Ridha Sadr, Grand Ayatollah Murtadha al-Ardikani. By 1989, he began to supervise
bahth kharij (advanced research seminars) in jurisprudence and principles of jurisprudence. == Works ==