Tafsir Qomi or Tafsir Al-Qummi is an exegesis on the Quran by Ali Ibn Ibrahim Qomi. It is based on hadiths method quoted from the imams, that were mostly transmitted through the author's father who was one of the Muhammad ibn Ya'qub al-Kulayni's teachers.
The book – which is considered to be the basis of many Shi'a commentaries – finds the literal meaning of verses, with reference to the traditions. The book relies on other Quranic verses, traditions and sometimes on famous poems, when commenting on a verse. The introduction discusses “abrogator and abrogated” (nasekh and mansookh), decisive and allegorical verses (mohkam and moteshäbeh verses), specific or general verses and in the words of the author a special style in Quran by the name of "Monghate' Ma'toof".
Tafsir Qomi in fact comprises at least two different tafsirs that have been combined together: one by `Ali b. Ibrahim b. Hashim al-Qummi himself, the other by Abu 'l-Jarud Ziyad b. al-Mundhir, a one time companion of Imam al-Baqir from whom he narrates a hadith for this tafsir, and who then later become the eponymous founder of the Jarudi Zaydi sect. This tafsir had been appended to the first by the latter's first transmitter, Abu 'l-Fadl al-`Abbas b. Muhammad.