Sunan refers to the collection of traditions and practices attributed to the Prophet Muhammad, which serve as a guide for Muslims in their daily lives. These traditions complement the Quran, the holy book of Islam, and provide insights into the Prophet's teachings, actions, and sayings. The term "Sunan" is often associated with various compilations of hadith, which are reports of the Prophet's words and deeds. Notable collections include those by Imam Abu Dawood, Imam al-Tirmidhi, and Imam an-Nasa'i. Together, these texts help shape Islamic law and ethical conduct within the Muslim community.