Introduction: Two Scholars, One Tafsir

Tafsir al-Jalalayn — The Commentary of the Two Jalals — is the product of two scholars who never met to collaborate, united by a shared name, a shared tradition, and a shared vision of what a practical Quranic commentary should accomplish. It is one of the most widely read Arabic tafsirs in Islamic history, cherished across centuries for its remarkable combination of brevity, accuracy, and accessibility.

The first Jalal was Jalal ad-Din al-Mahalli, born in Cairo in 791 AH (1389 CE). He was a distinguished scholar of Islamic jurisprudence (fiqh), theology, logic, and Quranic sciences, working within the Shafi'i legal tradition. Al-Mahalli was known for his exceptional capacity for condensation — his ability to compress complex scholarly discussions into precise, economical formulations without sacrificing accuracy. He applied this gift to numerous subjects, producing commentaries and texts across multiple disciplines that became standard educational references in the Egyptian and Syrian scholarly world.

Sometime in the mid-fifteenth century, al-Mahalli undertook a tafsir of the Quran in his characteristic compressed style. He began with Surah al-Kahf (the eighteenth chapter) and worked through to the end of the Quran (Surah an-Nas), then turned back to the beginning and completed Surah al-Baqarah. Before he could write the commentary on Surah al-Fatiha, he died in Cairo in 864 AH (1459 CE), leaving the first chapter unwritten and the project incomplete.

The second Jalal was Jalal ad-Din as-Suyuti, born in Cairo in 849 AH (1445 CE), and one of the most prolific scholars in Islamic history. As-Suyuti was a polymath who produced works in hadith, tafsir, fiqh, history, linguistics, and nearly every other Islamic science — his catalogue of writings runs to several hundred titles. He was a devoted student of the Shafi'i tradition and held al-Mahalli in great esteem as a predecessor.

When as-Suyuti learned that al-Mahalli's tafsir remained unfinished, he undertook to complete it. By his own account, he wrote the commentary on Surah al-Fatiha and the first few pages of Surah al-Baqarah in a single day — an extraordinary feat that reflects both his mastery of the subject and his determination to match al-Mahalli's concise style precisely. Some accounts suggest that as-Suyuti also completed the remaining portion not addressed by al-Mahalli, though scholarly discussion continues on the exact details of attribution.

The name al-Jalalayn — a dual form in Arabic meaning 'the two Jalals' — was given to the combined work, honoring both scholars equally. The seamlessness of the finished product, the way al-Mahalli's and as-Suyuti's contributions blend into a single voice, is itself a remarkable achievement: a testimony to the shared formation, shared methodology, and shared scholarly culture that both men inherited from the Egyptian Shafi'i tradition of the fifteenth century.