Tafsir is the scholarly discipline of explaining the Quran's meaning — clarifying difficult vocabulary, historical context (asbab an-nuzul, the "occasions of revelation"), grammar, legal implications, and how verses relate to one another. It draws on the Quran's own self-explanation, the Prophet's explanatory statements and practice, the understanding of his companions, Arabic linguistics, and reasoned scholarly judgment, roughly in that order of authority — reflecting the Quran's own description of the Prophet's role: "We revealed to you the message that you may make clear to the people what was sent down to them" (16:44). Among the most widely referenced classical works are Tafsir al-Tabari (an early, comprehensive collection of narrated interpretations), Tafsir Ibn Kathir (concise and heavily grounded in hadith), Tafsir al-Qurtubi (strong on legal rulings), and Tafsir al-Baghawi. Az-Zamakhshari's al-Kashshaf is prized for its linguistic depth, though read critically due to some theological positions. In more recent centuries, works like Tafsir al-Sa'di and Muhammad Asad's The Message of the Qur'an have introduced accessible commentary to modern readers. Because tafsir represents human scholarly effort to understand revelation, works can differ in emphasis and occasionally in conclusion, which is why serious study benefits from consulting more than one respected source.
Q&A · Quran
What is tafsir, and what are some of the most well-known books of Quranic exegesis?
References
Informational, not a personal fatwa. Consult a qualified scholar for rulings on your situation.