Alāʾ ad-Dīn Muḥammad was an esteemed scholar who studied spiritual, philosophical, and jurisprudence sciences. He was well known for his mystical statements, which reflected his profound knowledge. He established a special school to train
da'is in the correct principles of inviting people to
Nizari Isma'ili Islam. He authored a seminal constitution for the Nizari Ismailis, entitled
Murids. One of the da’is, Shams al-Den ibn Ahmad ibn Yaqoub al-Taibi (شمس الدين بن أحمد بن يعقوب الطيبي), documented that the treatise named
The Constitution and the Call to the Believers to Attendance (الدستور و دعوة المؤمنين إلى الحضور) was delivered to him by Da’i Nasir al-Din al-Tusi, who obtained it directly from Ala’ al-Din Muhammad. This treatise also mentioned that Ala’ al-Din Muhammad dictated to his
hujja, Shams al-Den ibn Ahmad ibn Yaqoub al-Taibi, a document called ''The Constitution of Mawlana Ala'audeen'', which displayed his high intellectual and scientific capacities. Alāʾ ad-Dīn Muḥammad offered special attention to the learned discussions and debates that took place in Alamut. He assigned one day per week to philosophical and doctrinal debates between da'is, guiding them to polish their skills for dialectical debating and offering pedagogical and argumentation techniques that made them proficient in dialectical discussions and arguments. The Syrian Nizārī author (1201–1257) was his da'i to Syria. He had important philosophical treatises as
Risālat al-Asābīʿ, ed., ʿĀrif Tāmir, in his
Khams Rasāʾil Ismāʿīliyya (pp. 057–079), which discussed esoteric exegesis (
taʾwīl) of certain Quranic verses and Ismaili theology related to the number seven. All-Dādīkhī was a talented poet; in the presence of Alāʾ ad-Dīn Muḥammad and his son Imam
Rukn al-Din Khurshah, he expressed a poem titled "Degree of the Fatimid Imam is Glorified" (قدر الإمام الفاطمي معظم), the verses of which affirm the
Fatimid origin of Alāʾ ad-Dīn Muḥammad. == Tolerance and pluralism ==