Fayl:Nizam al-Din al-Hasan bin Muhammad bin al-Husayn al-Qumi al-Nishaburi (d. after 1346); Kashf Haqa'iq Zij Ilkhani, signed 'Abd al-Mu'min bin Nasrullah al-Munshi al-Samarqandi, Timurid Iran, dated November 1432.jpg

English: NIZAM AL-DIN AL-HASAN BIN MUHAMMAD BIN AL-HUSAYN AL-QUMI AL-NISHABURI (D. AFTER 1346 AD): KASHF HAQA'IQ ZIJ ILKHANI

SIGNED 'ABD AL-MU'MIN BIN NASRULLAH AL-MUNSHI AL-SAMARQANDI, TIMURID IRAN, DATED END OF RABI' I AH 826/NOVEMBER 1432 AD

An early copy of this work copied within 100 years of the author's death, a commentary on Tusi's renowned work al-Zij al-Ikhani, Persian manuscript on polished paper, 224ff. plus two fly-leaves, each folio with 25ll. of small neat black nasta'liq script, titles in gold and red, including numerous diagrams and tables, some folios with text frame in gold and black, with catchwords, occasional marginal notes, incomplete at beginning, colophon dated and signed, later ownership notes, in 16th century Ottoman stamped and gilt brown morocco binding Folio 8 ½ x 5 1/8in. (21.8 x 13.2cm.)

Al-Hasan bin Muhamad bin al-Husayn al-Qumi al-Nishapuri was a mathematician and philosopher, originally from Qom but who resided in Nishapur. He wrote religious works, including a commentary on the Qur'an as well as scientific works such as a commentary on Tusi's treatise on the Almagest, Ta'bir al-tahrir (Al-Zerekly, Al-A'lam, Biographical Dictionary, Beirut, 2007, vol. 2, p.216). After moving to the Ilkhanid capital of Tabriz, he studied at the Ilkhanid observatory of Maragha, under Qutb al-Din Shirazi, himself a student of Nasir al-Din Tusi.

Other copies of this work are in Bombay, Istanbul, London, Mashhad, Najaf, Paris, Rampur, St. Petersburg, Tabriz and Tehran, see B.A. Rosenfeld & E. Ihsanoglu, Mathematicians, Astronomers & Other Scholars of Islamic Civilisations and their Works (7th-19th c.), Istanbul, 2003, p. 238, no.686. For more about Qutb-al-Din al-Shirazi (1236-1311),C. Brockelmann, GAL, II, 256, Suppl.II, 273.