When Hajj Abdul Karim Ha'eri Yazdi entered Arak he established a School of Theology, which quickly caught up with Isfahan's Theology School and which at the time was the best in the country. Therefore, Rouhullah decided to join this newly established Theology School and so went to Arak, which is 60 kilometers away from Khomein. There, Imam Khomeini studied for one year under the great scholars Sheikh Mohammad Ali Borojerdi and Agha Sheikh Golpayegani. During this time he also studied the book Sharhe Lame' by Agha Abbas Araki.