[3][4][5] Abū Ishaq Ibrāhīm was born on the 15th of Ramadan in the year 352 AH equal to 963 AD in Novard area of Kazerun (currently Olia neighborhood).
[6] [7] His father, Shahryar, was a craftsman from the Salmani dynasty of Kazerun, who were relatives of Salman the Persian, and the Prophet of Islam had exempted them from paying the Jizya.
[8][9][10] Shahryar and Banouye (his mother), who were born in Zoroastrian families, changed their religion and became Muslims before the birth of Abū Ishaq.
[20] Finally, after completing his studies, he founded the Kazeruniyeh (Morshediyeh) sufism in the second half of the 4th century AH with the aim of promoting Islam, centered in the city of Kazerun.
But due to the disruptions caused by the opponents in his work, he had to leave Kazerun and propagated religion by building an altar and then a stone mosque in the outskirts of the city.
[26] The hostilities continued until a man named Shahzur bin Kharbam tried to assassinate Sheykh Abū Ishaq, which was unsuccessful.
[29] The activities of the Kazeruniyeh sufism led by Sheykh Abū Ishaq reached such a level that it gradually established 65 Sufi lodge in the Fars region.
[30] Sheykh Abū Ishaq finally died on the 8th of Dhu Qadah in the year 426 AH equal to 1035 AD after enduring illness for four months in Kazerun.
[31][32] Sheykh Abū Ishaq had many disciples, and Mahmoud bin Othman gave a long list of their names in his biography's book.
[33] Among the famous disciples of Abū Ishaq during his lifetime, we can mention Amir Abulfazl bin Buyeh Deylami and Fakhr al-Mulk, the ministers of Buyid dynasty.
[72] The fame and influence of Sheykh Abū Ishaq of Kazerun in India reached such an extent that Alauddin Khalji, the king of the Khalji dynasty in India, after capturing the port of Kambaye (present-day Khambhat), built an altar there and wrote verses of the Quran around it and sent it to the tomb of Sheykh Abū Ishaq in Kazerun as a blessing.
[74] Ibn Battuta, who traveled to India in 734 AH, mentions the activities of the Kazeruniyeh sufism sufi lodges in the ports of Calicut and Kollam on the Malabar coast.
[75] Unions of Iranian merchants were active in western India under the leadership of Sheykh Shahab al-Din of Kazerun, known as Malik al-Tojjar.
[76] His son, Sheykh Fakhr al-Din of Kazerun, was also the head of the Kazeruniyeh sufi lodge in Kollam port and held the same position in South India.
[81] In his travelogue, Ibn Battuta has also mentioned that Sheykh Abū Ishaq of Kazerun has a high position in the eyes of the people of India and China, and ships coming from India or China pay thousands of dinars as offerings to the representatives of Sheykh Abū Ishaq to protect them from calamities.
In the year 802 AH, Sultan Bayezid Osmani built the symbolic tomb of Sheykh Abū Ishaq for the followers of the Kazeruniyeh sufism, which was known as Ishaqiyeh in that region.
[89][90] Whenever Shah Rukh, the king of the Timurid Empire traveled to the south of Iran, he came to visit the tomb of Sheykh Abū Ishaq.
Finally, with the coming to power of the Safavid dynasty, Shah Ismail I ordered the killing of the elders of the Kazeruniyeh sufism and the destruction of their important buildings.