Mus'haf

thumb|Mushaf al-Tajwid, printed with colored letters to facilitate reading the Quran with [[tajwid.]]

Mushaf (, ; plural ) is an Arabic word for a codex or collection of sheets, but also refers to a written copy of the Quran. The chapters of the Quran, which Muslims believe was revealed during a 23-year period in Muhammad's lifetime, were written on various pieces of paper during Muhammad's era. Two decades later, these papers were assembled into one volume under the third caliph, Uthman ibn Affan, and this collection has formed the basis of all written copies of the Quran to the present day.