According to search-discovered classical Islamic scholarship, the concept of At-Tibyān (التبيان) is the divine principle of clarification, central to the purpose of revelation. Al-Tabari, analyzing the linguistic root ب-ي-ن, explains it as the act of making something distinct and evident, separating truth from ambiguity. This is embodied in the Quran itself, which Allah describes as 'a clarification for all things' (tibyanan likulli shay-in) in Surah An-Nahl (16:89). Furthermore, Ibn Kathir's analysis of 16:44 emphasizes that a primary mission of the Prophet Muhammad (ﷺ) is to 'make clear to the people what was sent down to them' (litubayyina lin-nasi ma nuzzila ilayhim). Al-Qurtubi extends this to the legal sphere, noting that this prophetic clarification is the foundation for deriving clear Islamic law. The synthesis across these verses and scholarly traditions establishes At-Tibyān not merely as 'evidence', but as the active, merciful process by which Allah makes His guidance, rulings, and the path to salvation unmistakably clear through His Book and His final Messenger.