Background
His father came from Damascus. The word "Sibt al-Maridini" means "the son of Al-Mardini's daughter".
His father came from Damascus. The word "Sibt al-Maridini" means "the son of Al-Mardini's daughter".
He was a disciple of the astronomer Ibn al-Majdi (d 850/1506). Sibt al-Maridini taught mathematics and astronomy in the Great Mosque of al-Azhar, Cairo. He was also a timekeeper (muwaqqit) of the mosque.
He wrote no fewer than fifty treatises in astronomy (sine quadrants, sundials, astronomical tables and prayer times) and wrote at least twenty-three mathematics textbooks. Al-Sakhawy counted two hundred books that were written by Sibt al-Maridini, on Islamic law, astronomy, and mathematics. Sibt al-Mardini’s declared that “the opinion of the muezzins (those who call people to prayer) is less correct than that of the legal scholars and it is the latter that should be used as the basis for the determination of prayer time”.
Sharh al-Rahbiyah a commentary on the work of al-Rahbi (d 579 AH/1183 AD) on Fara'id (shares of inheritance).