The Jalalayn Tradition and Its Expansion

To understand Al-Futuhat al-Ilahiyyah, one must first understand its parent text, Tafsir al-Jalalayn, and the tradition of engagement with it that al-Jamal's work extends.

Tafsir al-Jalalayn was composed by two scholars who shared the same honorific name Jalal ad-Din. Jalal ad-Din al-Mahalli (1389–1459 CE) began the commentary but completed only the second half of the Quran (from Surah al-Kahf to an-Nas) and Surah al-Fatiha. After his death, his student Jalal ad-Din as-Suyuti (1445–1505 CE) completed the first half of the Quran, making the work as we have it the joint production of two scholars across two generations. As-Suyuti modeled his portion on al-Mahalli's style to produce a seamless whole.

The text of Tafsir al-Jalalayn is remarkably concise — often providing only a few words of explanation per phrase, relying on the student's existing Arabic competence and on oral teaching to fill the gaps. This concision made it ideal as an advanced student's first complete tafsir, one that could be memorized and then unpacked through teacher commentary. The tradition of oral expansion and written hashiyah to supplement the text began almost immediately after its composition.

Al-Jamal's Al-Futuhat al-Ilahiyyah is the most comprehensive and scholarly of the hashiyat on Tafsir al-Jalalayn. It addresses three main types of need: grammatical expansion (explaining the grammatical analysis behind al-Jalalayn's brief glosses), rhetorical enrichment (adding balaghah observations that al-Jalalayn did not include), and theological clarification (resolving apparent difficulties and adding relevant hadith and scholarly positions).

The supercommentary relationship between Al-Futuhat al-Ilahiyyah and Tafsir al-Jalalayn means that the two texts are typically read together in traditional education. Students who have mastered the bare text of al-Jalalayn work through al-Jamal's hashiyah to deepen their understanding, and the hashiyah in turn assumes familiarity with the parent text. This layered pedagogical approach — compact base text memorized first, then hashiyah studied under a teacher — is characteristic of the most rigorous Islamic educational traditions and reflects a wisdom about how deep learning proceeds: mastery of a concise summary creates a mental framework within which the details of a fuller exposition can be meaningfully organized and retained.