Majlisi collected his traditions from numerous earlier sources. As examples, we can mention a few of the works from which he derived the hadiths in the present collection, works which have been independently published in modern times. Shaykh al-Saduq, the author of one of the four basic works on Shi'ite hadiths referred to above, compiled dozens of authoritative hadith collections, each of which usually follows a particular theme. His al-Tawhid collects traditions which illustrate the profession of God's Unit.
Kisha Ayatullah Burujardi akachaguliwa kuwa kiongozi kushika wadhifa wa Shaykh Hairi. Imam Khomeini alikuwa akimfanyia kampeni Ayatullah Burujardi kupewa wadhifa wa uongozi akimtarajia kwamba atatumia fursa na wadhifa wake mkubwa wa kidini katika kupambana dhidi ya utawala wa Pahlavi. Alishirikiana sana na Ayatullah Burujardi mpaka alipofariki katika mwaka 1962.