Abu Isaac Ebrahim Kazerooni, known as sheikh Morshed, Iranian Muslim Sufi theologian and poet, born in 962, into a poor family in Kazeroon- Iran. He learned the Quran and the preliminary of some sciences. Abu Isaac was so popular and people had a great respect for him. He never married and strongly kept himself from talking to women. He suffered from a severe illness for 4 months and eventually died in 1035. According to his will, the list of people who accepted Islam by him and those who repented in the presence of him, all were buried with him.