Finally...
Finally, among his instructors in Khumayn mention may be made of the Imam’s elder brother, Murtaza, who taught him Najm al- Din Katib Qazvini’s al-Mutawwal on badi’ and ma’ani and one of the treatises of al-Suyuti on grammar and syntax.
(Although Sayyid Murtaza - who took the surname Pasandida after the law mandating the choice of a surname in 1928 - studied for a while in Isfahan, he never completed the higher levels of religious education; after working for a while in the registrar’s office in Khumayn, he moved to Qum where he was to spend the rest of his life).
In 1339/1920-21, Sayyid Murtaza sent the Imam to the city of Arak (or Sultanabad, as it was then known) in order for him to benefit from the more ample educational resources available there.…