A List of Arabic Manuscripts of Naṣīr al-Dīn al-Ṭūsī’s Taḥrīr al-Majisṭī

The Taḥrīr al-Majisṭī by Naṣīr al-Dīn al-Ṭūsī is known to have survived in several dozen manuscript copies in different parts of the world. At present, however, we do not have a full list of the preserved manuscripts —or any record that might serve as a basis for drawing up a list of this kind. For the first time, the present article gathers together information on more than a hundred Arabic manuscripts of the Taḥrīr al- Majisṭī, identified through an extensive search in manuscript-catalogues, collection reports and, when possible, by inspection of manuscript copies. Special importance has been given to clarifying the bibliographical situation of each manuscript, particularly concerning the printed catalogues. The article consists of four parts: 1. A brief introduction; 2. A description of the methodology; 3. The list of manuscripts; 4. Concluding remarks.