Aboo ‘Uthmaan as-Saaboonee, Shaikhul-Islaam, Ismaa’eel ibn ‘Abdur Rahmaan an-Neesaabooree, al-Waa‘idh (the admonisher), al-Mufassir (the exegete), al-Musannif (the author), one of the outstanding scholars. He narrated from Zaahir as-Sarkhasee. He died in the year 449H at the age of seventy-seven. He was the Shaikh of Khurasan of his time.
See Al-lba’r, 3/219.