Tefsir, as a discipline, relies on various sources to establish its conclusions and interpretations. These sources include the Quran, the Sunnah, the consensus of the companions of the Prophet (peace be upon him), and the opinions of the early generations of Muslim scholars, known as the salaf as-salih. In addition to these primary sources, the use of rational analysis and critical thinking is also employed to understand the text and its deeper meanings. The Quran is the primary source of Islamic teachings and is believed to be the word of God revealed to the Prophet Muhammad (peace be upon him). It contains the fundamental principles of Islam and provides guidance for believers in all aspects of life. The Sunnah, which refers to the teachings, practices, and sayings of the Prophet Muhammad (peace be upon him), is considered an essential source of Islamic law and is used to clarify and interpret the Quran. The consensus of the companions of the Prophet (peace be upon him) is also highly valued as a source of Islamic knowledge. The early generations of Muslim scholars, known as the salaf as-salih, are respected for their deep understanding of the Quran and Sunnah and their ability to apply their knowledge to contemporary issues. The use of rational analysis and critical thinking is an important aspect of tefsir. Scholars use their intellect and reasoning to analyze the text and its meanings, and to draw logical conclusions based on the available evidence. They also consider the historical and cultural context in which the text was revealed and the purpose it was meant to serve. In addition to these primary sources, tefsir also relies on other secondary sources, such as tafsir books, commentaries, and scholarly works. These secondary sources provide additional insights and interpretations of the text and can help to clarify any ambiguities or discrepancies. However, it is important to note that the interpretation of the Quran and Sunnah is a complex and nuanced process, and there can be differences of opinion among scholars. It is important to approach tefsir with an open mind and to seek guidance from qualified scholars who have a deep understanding of the religion. In conclusion, tefsir relies on a variety of sources to establish its conclusions and interpretations. These sources include the Quran, the Sunnah, the consensus of the companions of the Prophet (peace be upon him), and the opinions of the early generations of Muslim scholars. The use of rational analysis and critical thinking is also essential in the process of understanding the text and its