Rasm refers to the orthography or skeletal script of the Uthmanic manuscript of the Quran, established during the caliphate of Uthman ibn Affan (RA) and standardized across all official copies. The Uthmanic rasm represents the consonantal text without diacritical marks (nuqat) or vowel signs (harakat), preserving the essential structure of the divine revelation. This rasm became the authoritative template for all subsequent Quranic manuscripts, ensuring the text's preservation despite regional variations in pronunciation and orthographic conventions. The rasm includes certain orthographic features that sometimes differ from classical Arabic spelling conventions-for example, the writing of certain alifs, waws, and ya's in specific patterns. These features preserve the ancient script revealed to the Prophet (peace be upon him) and transmitted by the Companions. During the early Islamic centuries, scholars developed systems of diacritical marks and vowel signs to aid non-Arab readers while scrupulously maintaining the original rasm. Seven canonical qira'at (recitations) all conform to the Uthmanic rasm, demonstrating its comprehensive nature. The science of rasm al-mushaf studies the orthographic conventions of the Uthmanic manuscript and their relationship to the qira'at. For Muslims, the rasm represents divine protection of the Quranic text-the skeleton upon which the living recitation is built, ensuring that every authenticated qira'ah traces back to the original revelation. It symbolizes the Quran's preservation at both textual and oral levels, embodying Allah's promise: "Indeed, it is We who sent down the Quran and indeed, We will be its guardian" (15:9).