Muhammad ibn Tayfour Sajawandi

ʿAbū ʿAbdullāh Muhammad Ibn ʿAbū Yazīd Tayfūr Sajāvandī Ghaznavī, also known as Abū al-Fazl as-Sajāwandī al-Qāriʾ was a 12th-century Islamic scholar, mystic, Qāriʾ and theologian. He is primarily known for his contributions to the Islamic traditions of recitation and pronunciation, creating a set of rules and markers used to indicate the pronunciation and pauses of Quranic recital, known as Sajawandi stop signs or Rumuz al-Awqaf as-Sajāwandī. He is also credited as being the first known person to use coloured circles as a means of separating verses in the Quran, a design choice which has persisted til today, with the addition of a verse number inside of the circle. In Persian, the term muṣ·ḥaf sajāwandī مُصْحَف سَجَاوَنْدِي may today be used to denote an elegantly written Quran, accounting for the association between Sajawandi and his use of lavish red and golden dots as pause markers. His son Ahmad ibn Muhammad Sajawandi was also a well-known chronicler, commentator on the Quran, poet and orator.