"Forty Evidences on the Meaning of the Word Maula" explores the profound significance of the term "Maula" as used by the Prophet Muhammad (S) in the famous Hadith of Ghadir, where he declared Imam Ali (A.S.) as the "Maula" of all believers. This declaration is regarded by many within the Shiite tradition as a pivotal moment in affirming Imam Ali's (A.S.) divinely appointed leadership (Imamah) after the Prophet.

The book meticulously compiles forty pieces of evidence drawn from various sources, including Quranic verses, Hadith literature, linguistic analysis, and historical accounts, to support the interpretation of "Maula" as a term that signifies not just friendship or support, but divinely ordained authority and leadership. The work delves into the context of the event of Ghadir Khumm, where this proclamation was made, and examines the implications it had for the early Islamic community, particularly regarding the succession of leadership after the Prophet’s passing.