Tefsir, also known as tafsir, is the process of interpreting the meanings of the Quran, the holy book of Islam. It involves studying the context, language, grammar, and historical background of the verses to understand their intended meaning. Tefsir uses a variety of methods and techniques to achieve this goal, including the use of hadith (reports of the Prophet Muhammad), qiyas (analogical reasoning), and ijtihad (independent reasoning). Hadith is considered the primary source of Islamic law and ethics, and it provides insight into the teachings of the Prophet Muhammad. Qiyas is used to derive legal rulings from the Quran and hadith, and it involves comparing similar situations or events to arrive at a conclusion. Ijtihad is used to interpret the Quran and hadith in new or challenging situations, and it requires a deep understanding of the Islamic legal system. Tefsir also involves studying the various tafsir schools, which are groups of scholars who have developed different interpretations of the Quran. These schools include the Sunni, Shi'a, and Ibadi schools, among others. Each school has its own set of beliefs and practices, and they often differ in their interpretation of certain verses or passages. Tefsir is an important aspect of Islamic religious practice, and it helps Muslims to understand the teachings of the Quran and to apply them to their daily lives. It also plays a crucial role in the development of Islamic law and ethics, and it has been a subject of study for centuries. In conclusion, tefsir is the process of interpreting the meanings of the Quran, the holy book of Islam. It involves using a variety of methods and techniques, including hadith, qiyas, and ijtihad, to understand the intended meaning of the verses. Tefsir is an important aspect of Islamic religious practice, and it plays a crucial role in the development of Islamic law and ethics.