To say Imam Nawawi excelled in many fields would still be an underestimation. His genius was not just that he mastered one discipline—but that he illuminated many, all at once. Yet among the many, Fiqh (Islamic jurisprudence) and Hadith stood as his twin pillars, his lifelong devotion.

Fiqh—technically called ‘ilm al-fiqh—is the science of understanding how divine guidance translates into the everyday: what is permitted, what is forbidden, how to marry, how to trade, how to live as a Muslim in the world. As the noble Companion Abū al-Dardāʾ once said:“If not for jurists, we would be lost.”

He was echoing a report from the Tābiʿīn: The circle that teaches halal and haram, that teaches how to live, buy, sell, and marry—that is the true circle of God’s remembrance.

Imam Nawawi stepped into this sacred circle with unmatched depth and sincerity. He journeyed through the layers of fiqh, probing every corner of human life and deriving practical rulings from timeless texts. That, in essence, is the soul of jurisprudence.

And he did so with such precision, such reverence for the madhhab he inherited, that scholars across generations recognized him not merely as a transmitter but as a renewing force—a muḥaqqiq, a critical scholar and reformer.

He became known across scholarly circles as Shaykh al-Madhhab—the leading voice of the Shāfiʿī school in his age. Ibn Kathīr honored him with this title, calling him the greatest jurist of his time. Imam al-Dhahabī said that Nawawi had “touched the very heights of madhhab-based scholarship.”

His own student, Ibn al-ʿAṭṭār, described him beautifully: “My teacher was the shield and guardian of the Shāfiʿī school. He brought unity where others had drifted apart. He made the paths of earlier scholars smooth and visible again.”

And yet, for all his vast authority in jurisprudence, Nawawi never indulged in pointless debates. Imam al-Dhahabī noted: “He never engaged in argument. If someone came to dispute, he simply moved away.”

His clarity, his grounding in textual sources, and his utter lack of ego gave his fiqh a purity that commanded respect. That’s why, even today, across many parts of the Muslim world, his opinions are given preference and held in reverence.

In the field of Hadith, Imam Nawawi brought a quiet revolution. He didn’t just read the major Hadith collections—he mastered them,

 One by one, he studied:

Ṣaḥīḥ al-Bukhārī,

Ṣaḥīḥ Muslim,

Sunan Abī Dāwūd,

Jāmiʿ al-Tirmidhī,

Sunan al-Nasāʾī,

al-Muwaṭṭaʾ,

Musnad al-Shāfiʿī,

Musnad Aḥmad ibn Ḥanbal,

Sunan al-Dārimī,

Abū Yaʿlā,

Ibn Mājah,

al-Dāraquṭnī,

al-Bayhaqī,

Ibn al-Sunnī… the list continues.

And not through isolated or unauthenticated routes—he received them all through the most rigorous chains of transmission, and carefully documented those chains in multiple places.

Despite his relatively short life, Nawawi rose to the ranks of the muhaddithīn—the great Hadith masters. Imam al-Dhahabī says of him: “He was a memorizer of vast numbers of Hadith, a master of the variant narrations and subtle wordings.”

For Imam Nawawi, Hadith wasn’t just a field of scholarship—it was the very heartbeat of Islamic knowledge.

“Among all disciplines,” he once said, “Hadith holds the highest place. Its sciences, its transmitters, their biographies and lineages—all of it is essential knowledge.”

He delved deep—not merely into isnād (chains of narration) but into the meanings, the principles, the theological and legal resonances of the Prophetic words. His commentaries make that clear—especially in his celebrated explanation of Ṣaḥīḥ Muslim.

His students in Hadith were countless. Among them were famous names like Ibn Abī al-Fatḥ and Shaykh al-Mawsilī, and many others. Two days every week—Tuesday and Saturday—were reserved solely for teaching Bukhārī and Muslim. These were his special Hadith sessions.

Theologically, Imam Nawawi was rooted in the Ashʿarī school, the mainstream Sunni creed. Linguistically, he was an Arabic scholar in his own right. He once said: “Arabic is the language of God’s Book and the language of His Messenger’s Sunnah. The great scholars mastered it. They studied Arabic poetry and expressions. Even ʿĀʾishah and Ibn ʿAbbās were towering figures in this regard.”

He authored works dedicated to Arabic language, and his precision in phrasing remains unmatched. Among the sciences he attempted to study—but later stepped back from—was medicine.

He tells us himself: “The desire to study medicine awakened in me. I acquired al-Qānūn—Ibn Sīnā’s great compendium—and began reading it. But after a few days, something shifted. A darkness crept over my heart. I didn’t understand why.

Then it struck me—I had become distracted. I had taken a path not meant for me. Immediately, I sold the medical books and removed them from my room. As soon as they were gone, it felt as if light returned to my heart. I went back to my previous state.”

Medicine is not discouraged in Islam—in fact, Imam al-Shāfiʿī had said: “After learning halal and haram, the most honorable science is medicine.”

But Nawawi felt a spiritual incompatibility—not because he rejected the discipline, but because many ideas within the medical texts of the time conflicted with divine metaphysics, or led the mind toward purely materialistic reasoning. That discomfort was enough for him to step back.

Yet, in his works—including his Sharḥ Ṣaḥīḥ Muslim—he often cited Prophetic teachings on health and healing. He understood medicine’s value: “For every disease, there is a cure. And when the right remedy is found, by God’s permission, the illness will be lifted.” In short, there was no branch of knowledge Imam Nawawi didn’t at least touch.

And in every field he touched, he left behind nothing but a treasure.