Sahih Muslim is one of the six major Hadith collections in Islam, compiled by Muslim ibn al-Hajjaj al-Nisaburi. It is considered to be one of the most authentic and reliable Hadith collections, along with Sahih al-Bukhari. Sahih Muslim contains over 7,000 Hadiths and is organized into 57 books, covering a wide range of topics including Islamic beliefs, practices, ethics, and history. The Hadiths in Sahih Muslim are narrated by various companions of the Prophet Muhammad (peace be upon him).