The diverse spectrums of the Qoranists’ movement are among the currents that have addressed the challenges of contemporary jurisprudence. The author of Tafsir al-Furqan, Mohammad Sadeghi Tehrani, is one of the Quranists who paid attention to and analyzed this challenge. Based on the theoretical framework of Spriggan’s crisis model and its four phases, this article investigates Sadeghi Tehrani’s attitude toward a few of his possessions. Sadeghi considers the abandonment of the Quran and separation from it to be the most significant methodological and content challenge of contemporary law. On this basis, he attributed the crisis or the issue of abandonment of the Quran to a false interpretation of the Quran, the interpretation of the Quran with narrations rather than vice versa, the preference of an uncertain tradition over the Quran, the humanization of the Quran, and external factors such as colonialism. The only ethical solution is the total Quranic revolution. Therefore, existing Islamic sciences, particularly jurisprudence in the general sense or jurisprudence of Akbar, do not consider it as Quranic and criticize it. In contrast to traditional Tafaqquh and dynamic Tafaqquh, he proposes Tafaqquh Guya as a solution to the challenge of contemporary jurisprudence. According to him, Tafaqquh Guya is founded on the unquestionable acceptance of the Quran as proof and the reference to the unquestionable Sunnah on its margin, which renders all Islamic sciences inebriated. This Quranic fiqh encompasses all personal, social, and political domains. Sadeghi Tehrani believes that the optimal situation will occur when Imam Zaman appears, which will usher in the Quranic revolution and Quranic government. According to him, the phrase “coming with a new book” regarding the Imam of the time, which is mentioned in some narrations, does not refer to a new Quran but rather to the extant Quran, whose teachings have been disregarded throughout history.