An important book by the scholar of Islamic jurisprudence, Imam Muhammad Zahid al-Kawthari (1879-1952) in which the he sheds light on the two personalities of Imams al-Hasan bin Ziyad and Muhammad bin Shuja, explaining their approach and method and everything related to them, followed by other Imam's explanations and stories; al-Amani, Zafar, Abu Jafar al-Tahawi.