After the 1958 Iraqi coup d'état and the overthrow of the monarchy in Iraq, Sadr returned to Iran. There, he accepted the request of Ali Davani, who was sent by Ayatollah Shariatmadari, and became an editor of "Darsha'i az maktab-e Eslam", also known as "Maktab-e Eslam", a journal published by the Hawza of Qom and endorsed by Ayatollah Broujerdi. He began contributing with the third issue, focusing on Islamic economics, "a novel subject at the time". His articles in this field were then published as a book. He soon became the journal's "de facto editor-in-chief". He left the journal in December 1959 along with some of its original founders.