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.
[1][2][3] 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.
Abū Muḥammad al-Ḥasan ibn Mūsa al-Nawbakhti was the nephew of the theologian philosopher Abū Sahl ibn Nawbakht.
It was claimed al-Ḥasan ibn Mūsa was both Muʿtazila and Shī’a for the Nawbakht family were known followers of ‘Alī.