This article examines the concept of qiyās (analogy) in Ismaili thought, focusing on the discourse of the Qiyāmat period of Alamūt, particularly as reflected in Dīwān-i Qā’imiyyāt by Ḥasan Maḥmūd Kāteb. Within the Ismaili intellectual framework, qiyās—as the use of individual reason and partial inference—is rejected as an erroneous and perilous method for attaining divine truth. The findings of this study, based on a historical-textual analytical method, reveal that the Ismailis considered true knowledge attainable not through personal reasoning, but solely through the guidance of the “truthful teacher” (mu‘allim-i ṣādiq), namely the Imam of the time. In Dīwān-i Qā’imiyyāt, this critique is manifested through key notions such as “false analogy” (qiyās-i khaṭā) and “the path of analogy” (ṭarīq-i qiyās), which are portrayed as sources of deviation, obstacles to self-knowledge and recognition of the Imam, and signs of submission to passion and desire. In contrast, the Qā’im al-Qiyāmat is depicted as the luminous source and the sole true instructor whose guidance enables liberation from the misleading qiyās. A comparative examination with the views of thinkers such as Nāṣir-i Khusraw, Khwāja Naṣīr al-Dīn Ṭūsī, and Nazārī-i Qohestānī confirms the full consistency of this idea within the Ismaili tradition.