At first, he went to the Razawieh Seminary (Persian: مدرسه رضویه‎) for one year, then the Feyzieh Seminary (Persian: مدرسه فیضیه‎) for about one more year before starting to study with Abdul Karim Haeri Yazdi. After Haeri Yazdi's death in 1937, he studied under Mohammad Taghi Khansari, Seyed Mohammad Hojjat Kuh-Kamari, and Seyed Sadreddin Sadr. At age forty, he was certified for ijtihad (Persian: اجتهاد‎) by Mohammad Taghi Khansari.[citation needed]