Abu Ishaq Kazeruni

Ibrāhīm bin Shahryar bin Zadan Farrokh bin Khorshid, better known by his pen-names Abū Ishaq (ابواسحاق) and Sheykh Abū Ishaq of Kazerun and Nicknamed Sheykh Murshid, was a famous Iraninan Sufi of the late 4th and early 5th century AH. He was the founder of the Kazeruniyeh sufism, which spread eastwards to India and China, and westwards to Anatolia and Baghdad.