The conference clearly portrayed Nader Shah's ulterior motive[70][71], since it stemmed from the need to appease the anti-Shi'i hostility reflected by the Sunni's, as only the legitimacy of Shi'ism was questioned, and not Sunnism. The discussions included the vilification of the first caliphs, the legitimacy of their rule, the question of the Prophet's companions in general, and temporary marriage (mut'a).[72][73]