Tafsir Hedayat is an exegesis on the Quran written by Grand Ayatollah Mohammad Taqi al-Modarresi in eighteen volumes in Arabic. The author started the series in 1978 and finished it in six years. A translation of the series was published in Persian.
Methodology References Mohammad Taqi al-Modarresi's English biography Ghadeer website, "Introducing Tafsir Hedayat and its translation"