This famous explanation of the Quran is the work of the outstanding Islamic judge of the past Jalalu-Din Al Mahalli which was completed by his student Jalalu-Din As-Sayuti. Hence the term Jalaalayn, meaning the &quot;two Jalals&quot;.<br /><br />It is an authentic and beautiful explanation of the Quran.&nbsp;Tafseer al-Jalaalayn is generally regarded as one of the most easily accessible works of Qur&#39;anic interpretation and explanation due to its simple style and one-volume length.