Abu al-Qasim Abd al-Karim al-Qushayri

Ibn Hawazin Qushayri, wani mashahurin malamin Islama daga Nishapur, ya kasance masanin tafsirin Alkur'ani da fikihu a mazhabar Shafi'i. Ya shahara sosai saboda rubuce-rubucensa kan tasawwuf. Daga cikin ayyukansa mafi shahara akwai 'Al-Risala al-Qushayriyya,' wanda ke bayani kan koyarwar tasawwuf da kuma rayuwar sufaye. Wannan littafi ya yi tasiri mai zurfi a kan fahimtar tasawwuf a tsakanin al'ummar musulmi.