Abu Muhammad al-Hasan ibn Musa al-Nawbakhti

Abū Muḥammad al-Ḥasan b Mūsā an-Nawbakhtī (الحسن بن موسى النوبختي; born late 9th century and died between 912 and 922) was a Persian and leading Shī'ī theologian and philosopher in the first half of the 10th century. The Nawbakhtī family boasted a number of scholars famous at the Abbāsid court of Hārūn al-Rashīd. Al-Ḥasan ibn Mūsa is best known for his book about the Shi'a sects titled Firaq al-Shi'a.

Life
Abū Muḥammad al-Ḥasan ibn Mūsa al-Nawbakhti was the nephew of the theologian philosopher Abū Sahl ibn Nawbakht. Among his fellow translators of books of philosophy were Abū 'Uthmān al-Dimashqi, Isḥāq ibn Ḥunayn, and Thābit ibn Qurra. It was claimed al-Ḥasan ibn Mūsa was both Muʿtazila and Shī’a for the Nawbakht family were known followers of ‘Alī. He transcribed a large number of books and wrote books on theology, philosophy and other topics. His book Firaq aš-šī'a  (The sects of Shi'a) is the earliest surviving complete work on the Shiite sects, and the oldest text from an imamitic perspective on the differences between the various Islamic sects and their origins within Shiism.

Works

 * ar-Radd 'alā' l-ġulāt
 * ar-Radd 'alā' l-ġulāt

Titles listed in al-Fihrist

 * Kitāb al-arā' wa-'d-diyānāt (كتاب الاراء و الديانات ولم يتمّه); Doctrines and Religions (unfinished)
 * Kitāb ar-radd alā' aṣḥāb at-tanāsukh (كتاب الردّ الى اصحاب التناسخ); Refutation of Upholders of Transmigration (At-tanāsukh)
 * Kitāb at-tawḥīd wa ḥadīth al-Ilal (كتاب التوحيد وحدث العلل); Oneness and the Principal Cause
 * Kitāb naqḍ (كتاب نقض) Refutation Book
 * Kitāb Abū ‘Īsā fī ‘l-gharīb al-mashraqī (كتاب ابى عيسى في الغريب المشرقى); Refutation of the Book of Abū ‘Īsā about the Unusual Eastern
 * Kitāb Ikhtiṣārī Ikhtiṣār al-kūn wa’l-fasād li-Arisṭālīs (كتاب اختصارِ اختصار الكون والفساد لارسطاليس); Abridgement of Aristotle’s “De Generatione et Corruptione”
 * Kitāb al-Ihtijāj li ‘Umar ibn ‘Abbād wa nuṣrat madhabuhu (كتاب الاحتجاج لعمر بن عباد ونصرة مذهبه); Proof by Umar ibn ‘Abbād and a Defense of his Doctrines
 * Kitāb al-Āmāmat (كتاب الامامة); ‘The Imamate’ (unfinished)