Tafsir (tafsīr taf'sIr) refers to exegesis, usually of the Quran. An author of a tafsir is a (مُفسّر; plural: mufassirūn). A Quranic tafsir attempts to provide elucidation, explanation, interpretation, context or commentary for clear understanding and conviction of God's will.
Principally, a tafsir deals with the issues of linguistics, jurisprudence, and theology. In terms of perspective and approach, tafsir can be broadly divided into two main categories, namely tafsir bi-al-ma'thur (lit. received tafsir), which is transmitted from the early days of Islam through the Islamic prophet Muhammad and his companions, and tafsir bi-al-ra'y (lit. tafsir by opinion), which is arrived through personal reflection or independent rational thinking.
There are different characteristics and traditions for each of the tafsirs representing respective schools and doctrines, such as Sunni Islam, Shia Islam, and Sufism. There are also general distinctions between classic tafsirs compiled by authoritative figures of Muslim scholarship during the formative ages of Islam, and modern tafsir which seeks to address a wider audience, including the common people.
The word is derived from the three-letter Arabic verbal root of ف-س-ر F-S-R (, 'interpreted'). In its literal meaning, the word refers to interpreting, explaining, expounding, or disclosing. In Islamic contexts, it is defined as understanding and uncovering God's will which has been conveyed by the Quranic text, by means of the Arabic language and one's own knowledge.
The first examples of tafsir can be traced back to Muhammad. According to Islamic belief, as the Quran was revealed to him, he recited the verses to his companions, usually explaining their meanings to teach them, as it was one of Muhammad's responsibilities. Elements of Muhammad's explanations including clarifying verses whose intents are not understood, the indication of names, places, times etc. which have not been mentioned in the verse, restriction of meanings which have been given as absolute and reconciliation of expressions which seem contradictory.