According to rahyafte (the missionaries and converts website):The concept of the occultation of Imam Mahdi, also known as the Hidden Imam, is an integral part of Shia Islam, particularly within Twelver Shia belief. The following are references to the occultation of Imam Mahdi found in Shia books:
Bihar al-Anwar (Seas of Lights): This extensive work by Allama Muhammad Baqir ibn Muhammad Taqi al-Majlisi, commonly known as Allama Majlisi, contains numerous references to the occultation of Imam Mahdi. It elaborates on the reasons, signs, and conditions surrounding his hidden existence.
Al-Ghaybah (The Occultation): Written by Muhammad ibn Ibrahim ibn Jafar al-Nu’mani, this book provides insights into the different stages of the occultation of Imam Mahdi, including both the Lesser Occultation (Ghaybah al-Sughra) and the Greater Occultation (Ghaybah al-Kubra).
Kamal al-Din wa Tamam al-Ni’mah (The Perfection of Religion and the Final Blessing): Authored by Sheikh Saduq (Muhammad ibn Ali ibn Babawayh al-Qummi), this book features detailed discussions on the characteristics of Imam Mahdi, the reasons for his occultation, and the signs of his reappearance.
Al-Mahdi al-Muntadhar (The Awaited Mahdi): Written by Allama Baqir Sharif al-Qarashi, this book explores the life and occultation of Imam Mahdi, presenting a comprehensive view of his role and significance in Shia Islam.
Kamal al-Din wa Tamam al-Ni’mah: Another work by Allama Majlisi, this book delves into the concept of the Hidden Imam, discussing the historical context, reasons for the occultation, and the role of Imam Mahdi during this period.
Iqbal al-A’mal (The Reward of Deeds): Authored by Sheikh Saduq, this book provides insights into the circumstances leading to the occultation of Imam Mahdi and the guidance for believers during his absence.
These references, among others, are sources through which Shia Muslims gain an understanding of the occultation of Imam Mahdi, its significance, and its implications for their faith and actions. The concept of occultation underscores the belief in the eventual return of Imam Mahdi to establish justice, peace, and equity in the world. @rahyafte_en
