al-Resaleh al-Mo‘iniyeh va Hall-e Moshkelat-e Mo‘iniyeh (2 vols.)

• Persian/Arabic Title: الرسالة المعینیة و حلّ مشکلات معینیه (2جلد)
• Transliterated Title: al-Risālah al-Muʿīniyyah wa Ḥall Mushkilāt al-Muʿīniyyah
• English Title: The Muʿīniyya Treatise and the Resolution of Its Difficulties (2 vols.)
• Author: Naṣīr al-Dīn Muḥammad ibn Muḥammad al-Ṭūsī (7th century A.H.)
• Editors: Sajjād Nīk-Fahm Khūb-Ravān; Fāṭimah Sawādī
• Language: Persian–Arabic
• ISBN: 978-600-203-204-1 (set)
• Publication Year: 2020
• Pages: 466
• Format: PDF
• Category: Sciences and Techniques
• Miras Maktoob Collection Code: 346

【Summary】

This two-volume publication presents a critical edition of two closely related and highly influential Persian treatises on hayʾa (Ptolemaic astronomy) by Naṣīr al-Dīn Ṭūsī: al-Risālah al-Muʿīniyyah and its companion commentary, Ḥall Mushkilāt al-Muʿīniyyah (also known as al-Risālah al-Mughnīyah and Ḥall Mushkilāt al-Mughnīyah).

The editors collated multiple manuscripts, including two copies preserving folios in the author’s own hand, to establish a reliable text. Two independent prefaces—by Jamīl Rajab (McGill University) and Ḥusayn Maʿṣūmī Hamadānī—survey the history of scholarship on these texts and articulate their significance for the development of Islamic astronomy. The edition is a key resource for studying Ṭūsī’s astronomical models and the transmission of Ptolemaic science in the medieval Islamic world.