This is possibly a work by Abu Mansur Hasan bin Nuh al-Qumri who was a scholar from Bukhara and lived under the reign of the Samanid ruler Al-Amir Mansur. Ibn Sina studied his works on medicine (Al-Zerekly, Al-A'lam, Biographical Dictionary, Beirut, 2007, vol. II, p.224). The work is dedicated to Al-Amir Al-Mansur to which it gives the secondary title of Al-Shamsiya al-Mansurya. The treatise is recorded in its original title in Katib Celebi, Kashf al-Zunun, Beirut, 2008, vol. II, p. 459. However the title was very popular and was selected by many authors so it is almost impossible to identify this manuscript.