'Abd al-Karīm ibn Hūzān Abū al-Qāsim al-Qushayrī al-Naysābūrī. He is an Arab Muslim scholar and theologian known for his works on Sufism. He was born in 986 CE in Nishapur which is in Khorasan Province in Iran. This region was widely known as a center of Islamic civilization up to the 13th Century CE.

Major Works: Al-Risala Al-Qushayriyya, al-Tahbir fi al-tazkir sharh Asmau al-Husna