I understand you're looking for a long article about — specifically, a detailed write-up covering its significance, structure, authors, and where to find the Arabic PDF version.
Below is a comprehensive article tailored to your request. Since I cannot directly provide or link to copyrighted PDF files, I will guide you on how to locate authentic, free Arabic copies legally and describe the Tafsir in depth. Introduction Tafsir al-Jalalain (تفسير الجلالين), meaning "The Commentary of the Two Jalals," is one of the most famous and widely studied Sunni Qur'anic exegeses (tafsir) in the Islamic world. Written by two Egyptian scholars—Jalal ad-Din al-Mahalli (d. 864 AH/1459 CE) and his student Jalal ad-Din as-Suyuti (d. 911 AH/1505 CE)—it is renowned for its brevity, clarity, and reliance on authentic sources.