Abu Naṣr Abu Muḥammad ibn Saʿīd (Arabic: أبو نصر أبو محمد بن سعيد), also known as Shaykh Fathi or Al-Fatḥ al-Mawṣilī was one of the early Muslim Sufi saints.

[1][2] He was born in the Kar district[2] of Mosul, hence he had the epithet Al-Mawsili.

[4][2] Al-Fath al-Mawsili was also a companion of the fellow scholarly ascetic, Bishr ibn al-Harith.

[5] He died in 835 and was buried in his hometown, where a shrine was built over his grave.

This Iraqi academic-related biographical article is a stub.