For over fourteen centuries, Muslims have turned not only to the Quran but also to the recorded sayings, actions, and approvals of the Prophet Muhammad ﷺ — known collectively as the Hadith — to understand how to worship, live, and carry themselves through every dimension of life. Yet for many Muslims today, particularly those new to the faith or raised without formal Islamic education, a pressing question lingers: if the Quran is the preserved, miraculous word of Allah, why do we also need the Hadith? In a wide-ranging conversation on The Deen Show, scholar Naadim Aziz — a graduate of the prestigious Islamic University of Madinah and instructor at the Al-Maghrib Institute — answers this question with remarkable clarity, taking viewers from the Quranic foundations of the Sunnah’s authority all the way through the rigorous science of Hadith authentication that Muslim scholars developed to preserve it for future generations.
The Sunnah as Divine Commandment: What the Quran Says About Following the Prophet ﷺ
“Obey Allah and obey the Messenger and those in authority among you.” — Surah An-Nisa 4:59
A Muslim does not follow the Sunnah simply out of tradition or culture — the obligation is rooted in the Quran itself. Naadim Aziz explains that in Surah An-Nisa (4:59), Allah commands obedience to Himself and the Messenger unconditionally, while obedience to those in authority is conditional — limited to what aligns with the Sharia. This linguistic distinction is far from trivial: it establishes that the Prophet’s guidance carries the same divine weight as the Quran. Allah further describes the Prophet ﷺ as speaking not from personal desire, but from revelation (Surah An-Najm 53:3–4), meaning the Sunnah is itself a second form of divine guidance sent to explain, elaborate upon, and give practical shape to the Quran’s broader commands. The argument becomes practically inescapable: the Quran commands prayer dozens of times, but not a single detail about how to perform it — how to stand, how many units to pray, what to recite — is specified within the Quran itself. That knowledge lives in the Sunnah. To reject the Hadith while claiming to follow the Quran is therefore a self-defeating position, one which scholars across generations have described as a departure from the way of the Companions and the righteous early generations. Key points that establish the Sunnah’s authority include:
- The Quran repeatedly links obedience to Allah with obedience to the Messenger ﷺ (4:59, 4:80, 8:24), treating the two as inseparable
- Allah revealed the Sunnah as a secondary revelation specifically to explain the Quran (16:44), making both interdependent
- The Prophet ﷺ himself warned: “I do not want to see any one of you reclining on his couch, hearing of my instructions or prohibitions, and saying ‘I don’t accept it; we didn’t find any such thing in the Book of Allah'” (Tirmidhi)
- Imam Al-Shafi’i recorded the scholarly consensus: no Companion or Successor ever narrated a report from the Prophet ﷺ without accepting it, adhering to it, and affirming it as Sunnah
- Rejecting the Sunnah outright, according to classical scholars, constitutes kufr — a denial of a foundational and undeniable pillar of the religion
A Science Unlike Any Other: How Muslim Scholars Preserved the Hadith Across Generations
The real debate, as Naadim Aziz acknowledges, is not about whether the Sunnah has authority — that is well-established — but about whether the Hadith we have today are authentic and reliable. To answer this, he walks through the extraordinary methodology that Muslim scholars developed: the science of Hadith criticism, which historians and academics have called one of the most sophisticated biographical and testimonial verification systems ever devised. During the Prophet’s own lifetime, Companions wrote Hadith down with his knowledge and blessing — Abdullah ibn Amr ibn al-‘As kept a personal scroll known as “Al-Sadiqa,” and Caliph Omar wrote documented instructions on Zakat rulings directly from what the Prophet ﷺ had taught him and sent them to governors in other lands. The Prophet ﷺ himself set the psychological and ethical standard for transmission, warning: “Let whoever lies upon me intentionally prepare his seat in the Hellfire,” while simultaneously encouraging precise narration: “May Allah brighten the face of the man who narrates a Hadith from us just as he heard it.” For a Hadith to be classified as authentic (sahih), five rigorous conditions must be satisfied simultaneously:
- Connected chain of narration (Ittisal al-sanad): Every transmitter in the chain from the Prophet ﷺ down to the compiler must be known and documented — no gaps, no anonymity
- Precision and accuracy (Dabt): Each narrator must have demonstrated exceptional memory and exactness in conveying what they heard, word for word
- Moral uprightness (Adalah): Narrators must be people of established integrity, free from major sins and blameworthy religious innovation
- Absence of contradiction (Shudhudh): The narration must not contradict stronger, more reliable chains covering the same report
- Freedom from hidden defects (Illah): Even an apparently sound Hadith is rejected if scholars detect a subtle flaw — as Imam Muslim himself demonstrated by including a variant with an inverted detail to prove a point about inauthentic narration
The scholars who applied these criteria — men like Imam Bukhari, who recited the Quran in full every three nights during Ramadan and memorized books by covering one page at a time so the other wouldn’t interfere with his recall — operated at a level of intellectual and spiritual dedication that Naadim Aziz rightly says seems itself divinely facilitated. The result was a body of authenticated narrations traceable, narrator by narrator, all the way back to the Prophet ﷺ.
“Indeed actions are by intentions, and every man shall have that which he intends.” — The first Hadith recorded by Imam Al-Bukhari in Sahih Al-Bukhari, chosen deliberately to set the intention behind all knowledge-seeking
What emerges from this discussion is not simply an academic point about methodology — it is a profound affirmation of divine care. If Allah promised in the Quran to preserve the Dhikr (Surah Al-Hijr 15:9), and if the Sunnah is the very explanation without which the Quran cannot be practised, then the meticulous preservation of the Hadith is itself part of that divine promise being fulfilled. Just as Moses taught the Torah to his people and Jesus taught the Injeel to his, the Prophet Muhammad ﷺ was the living embodiment of the final Revelation — and unlike previous messages, which were intended for specific peoples and times, this final message was destined for all of humanity until the Day of Judgment. That is precisely why it had to be preserved with a precision no earlier scripture was subjected to. For the Muslim seeking to deepen their faith, and for the sincere inquirer trying to understand why Islam is not simply “the Quran-only,” the answer is both logical and spiritually grounding: the Quran commands us to follow the Messenger ﷺ, the Messenger’s guidance was divinely sourced, and through an unbroken chain of scholars who dedicated their lives to precision, piety, and truthfulness, that guidance has reached us intact. The invitation, as Imam Bukhari understood, begins with a pure intention — and from that purified starting point, the entire edifice of Islamic knowledge and practice opens up.
