أبو القاسم الخوئي
He studied his primary religious studies in Karbala under scholars such as Sheikh Ali al-Eithan al-Ahsa'i, and his son Sheikh Husayn al-Eithan. He then moved to Najaf in 1974 to study at the College of Jurisprudence. He also took lessons at the religious seminary, completing his "sutooh" studies with Ayatollah Sayyid Muhammad-Taqi al-Hakim and Ayatollah Sayyid Abd al-Saheb al-Hakim. He then began his "bahth al-kharij" studies with Ayatollah Sayyid Abu al-Qasim al-Khoei, Ayatollah Sayyid Muhammad-Baqir al-Sadr, Ayatollah Sheikh Ali al-Gharawi, and Sayyid Nasrallah al-Mustanbit.