al-Muḥāsibī was the founder of the Baghdad School of Islamic philosophy, and a teacher of the Sufi masters Junayd al-Baghdadi and Sirri Saqti.His full name is Abu Abdullah Harith bin Asad bin Abdullah al-Anizi al-Basri hailed from the Arab Anazzah tribe. He was born in Basra in about 781. Muhasibi means self-inspection/audit. It was his characteristic property. He was a founder of Sufi doctrine, and influenced many subsequent theologians, such as al-Ghazali. Read More