In the fourth chapter, we presented his views on faith and human action, highlighting the importance he placed on the element of action in determining faith and related matters. We attempted to discern his opinion on human action between the comprehensive divine power he affirmed and the ability he affirmed for humans, which entails accountability, as well as reward and punishment.

We dedicated the fifth chapter to detailing his fundamental principles, those he organized around a single core concept: deriving rulings from their textual evidence. He formulated all related views to serve and reinforce this core, adopting an innovative approach in presenting these principles in terms of their arrangement and, at times, their content. We prefaced these principles with an explanation of Al-Mahdi's approach to establishing principles and its general significance to his call. Then, we elaborated on his statement regarding the reality of a principle and its rulings, highlighting his rejection of the principle of conjecture and the invalidity of analogical reasoning. We then explained his view on the relationship between a principle and its derivative. Finally, we concluded with his statements on the foundations upon which the obligation of a principle is based.

We concluded this section with a chapter for commentary on these views. In it, we aimed to take a comprehensive look at Al-Mahdi's views to discern their general characteristics. We prefaced this by explaining the factors that influenced Ibn Tumart's views, shaping them as they were. We observed the practical nature of his views, necessitated by the dynamic nature of his activities, and presented several manifestations of this. We then clarified the selective nature of these views, explaining that they do not belong to a single school of theological thought but rather benefited from various schools. All of them were arranged in a system created by Al-Mahdi's personality and intellectual freedom. We concluded this chapter with observations related to Al-Mahdi's views on the call and his methodology in it, explaining his wisdom and insight, as well as the occasional error he made.

In presenting these views, we attempted to follow a synthetic, analytical, and comparative methodology. This involves first drawing a picture of the idea by gathering its scattered elements from Al-Mahdi's sayings and positions. Then, we delve into understanding that picture by analyzing its components and discerning the reality of its structure. Finally, we compare it with similar views held by those who preceded Al-Mahdi, from whom it is presumed he drew knowledge and benefited.