Jafari refers to the primary school of jurisprudence within Shia Islam, named after Imam Ja'far al-Sadiq, the sixth Imam. This school emphasizes the use of reason and the traditions of the "Ahl al-Bayt" (the family of the Prophet) in deriving legal rulings. While it shares many core practices with the four Sunni schools, it has distinct rules regarding inheritance, "Khums" (taxation), and certain marital laws. Imam Ja'far al-Sadiq was a towering intellectual figure of his time, and his teachings influenced scholars across the entire Islamic spectrum, including Imam Abu Hanifa. The Jafari school is the predominant school of jurisprudence in Shia Islam, particularly in Iran, Iraq, Azerbaijan, and Lebanon. It is named after Imam Ja'far al-Sadiq (702-765 CE), the sixth Imam in the Twelver Shia tradition, who was a renowned scholar in his time. The Jafari school relies on four primary sources: the Quran, the Sunnah (as transmitted through the Ahl al-Bayt), reason (aql), and consensus (ijma). The Sunnah in the Jafari tradition is transmitted through the Imams of the Ahl al-Bayt, who are considered infallible interpreters of the Prophet's teachings. Reason plays a significant role in Jafari jurisprudence. The school emphasizes the use of rational principles to derive rulings, particularly in areas not explicitly addressed by the texts. This allows for flexibility and adaptation to new situations. Distinct rulings in the Jafari school include the practice of khums (one-fifth tax) on various categories of wealth, different rules for temporary marriage (mut'ah), and some differences in inheritance laws and prayer practices. Despite differences, the Jafari school shares the core beliefs and practices of Islam: Tawhid, prophethood, resurrection, prayer, fasting, zakat, Hajj, and jihad. The differences are in the details of jurisprudence, not in the fundamentals of faith. Imam Ja'far al-Sadiq was a respected teacher who taught many scholars, including Imam Abu Hanifa, the founder of the Hanafi school. His intellectual legacy influenced not only Shia jurisprudence but also the development of Islamic thought more broadly. The Jafari school represents the rich diversity of Islamic jurisprudence. It is a testament to the depth and sophistication of Islamic legal thought across different traditions. For followers of the Jafari school, it provides a comprehensive framework for living Islam according to the teachings of the Quran, the Prophet, and his family, emphasizing reason, justice, and the importance of following the Imams of the Ahl al-Bayt.