According to search-discovered classical Islamic scholarship, the term 'al-Ummi' (الأمي), translated as 'the Unlettered,' is a significant Quranic description with two primary applications. In reference to Prophet Muhammad (ﷺ), as found in Surah Al-A'raf (7:157-158), classical authorities like Ibn Kathir and Al-Tabari confirm it signifies his inability to read or write. This state is not seen as a deficiency but as a profound miracle and a fundamental proof of the Quran's divine origin, as it was impossible for an unlettered man to produce a text of such unparalleled linguistic beauty and knowledge. The Quran itself notes, "And you did not recite before it any book, nor did you inscribe one with your right hand. Otherwise, the falsifiers would have had [cause for] doubt" (29:48). Secondly, the plural form 'Ummiyyun' is used to describe the community to which the Prophet was sent—the Arabs—who, unlike the Jews and Christians, had not previously received a divine scripture (2:78, 3:20). The synthesis of these meanings highlights a core aspect of the Islamic message: a divine revelation delivered by an unlettered Prophet to an unlettered people, leaving no doubt as to its heavenly source.