This document provides an introduction and overview of Sahih Muslim, one of the six major hadith collections in Sunni Islam. It was collected by Muslim ibn al-Hajjaj, who lived in the 9th century CE and worked to verify the authenticity of hadiths attributed to the Prophet Muhammad. The introduction discusses Muslim's rigorous verification and acceptance criteria, including checking for compatibility with the Quran. It then lists and provides a brief description of the 43 books that make up Sahih Muslim, covering topics of faith, prayer, fasting, and more. Finally, it presents the first hadith from Book 1 on faith, which discusses a conversation between companions on the topic of divine decree.