Lot Essay
According to the preface of this manuscript, the work is dedicated to a vizier Kamal al-Din Mahmud and bears the title of Al-risala al-kamaliya, probably in the patron's honour. This appears to be the same treatise as Sullam al-Sama (Stairways to heaven) recorded as being dedicated to vizier Kamal al-Din Mahmud and completed in March 1407 AD/21 Ramadan AH 809. This date appears in the colophon of the present manuscript.