Sahih Muslim full title: Al-Musnadu Al-Sahihu bi Naklil Adli) is one of the Kutub al-Sittah (six major hadith collections) in Sunni Islam. It is highly acclaimed by Sunni Muslims as well as Zaidi Shia Muslims. It is considered the second most authentic hadith collection after Sahih al-Bukhari. It was collected by Muslim ibn al-Hajjaj, also known as Imam Muslim. Sahih Muslim, together with Sahih al-Bukhari is termed as Sahihayn.