Джами ат-таварих
Contemporary Sunni sources mention nothing about the "Qiyāma" of the Nizārī Ismā'īlīs of the Alamūt period, and some historians claim that this period and knowledge of its events apparently remained confined to the Nizārī Ismā'īlīs until the Mongols destroyed Alamut Castle, and Sunnis found their writings there (and wrote about it decades later). Among the primary means that we have knowledge of their writings and history is through the (prejudiced and unfavorable) histories of Juwayni ("Tarikh-i Jahangushay-i Juvaini"), Rashid al-Dīn ("Jami' al-tawarikh"), and Kashani ("Zubdat al-tawarikh"). However, there is one anonymous Nizārī Ismā'īlī treatise extant, named Haft Bab-i Baba Sayyidna, dating to the time of Muhammad II that provides us with some understanding of the doctrine of the "qiyāma" from this period. Yet even this source is not a contemporary document recording the actual declaration of the "Qiyāma".