Abū al-Ḥusayn ‘Asākir ad-Dīn Muslim ibn al-Ḥajjāj ibn Muslim ibn Ward ibn Kawshādh al-Qushayrī an-Naysābūrī (Arabic: أبو الحسين عساكر الدين مسلم بن الحجاج بن مسلم بن وَرْد بن كوشاذ القشيري النيسابوري‎; after 815 – May 875 CE / 206 - 261 AH) or Muslim Nayshāpūrī (Persian: مسلم نیشاپوری‎), commonly known as Imam Muslim He was an Islamic scholar from the city of Nishapur in early Khorasan and present day Iran, and particularly known as a muhaddith (scholar of hadith). His hadith collection, known as Sahih Muslim, is one of the six major hadith collections in Sunni Islam and is regarded as one of the two most authentic (sahih) collections, alongside Sahih al-Bukhari.