Abu al-¿usayn 'Asakir ad-Din Muslim ibn al-¿ajjaj ibn Muslim ibn Ward ibn Kawshadh al-Qushayri an-Naysaburi or Muslim Nayshapuri, commonly known as Imam Muslim, was an Islamic scholar from the city of Nishapur, particularly known as a muhaddith. His collection of Islamic writings are regarded as the second most authentic.