Hadith are the recorded sayings, actions and approvals of the Prophet Muhammad ﷺ. After the Quran, they are the second source of Islamic guidance, explaining how to pray, fast, give charity and live with good character.
Without hadith, Muslims would not know the number of daily prayers, the details of zakat or countless aspects of the Prophet’s beautiful example.
This guide explains what hadith are, how they differ from the Quran, how they were preserved, the structure of a hadith, how scholars classify them, the major hadith collections and how Muslims should engage with hadith today.
The Meaning of Hadith
Linguistically, hadith means speech, report or something new. In Islamic terminology, a hadith is anything attributed to the Prophet ﷺ of:
- Sayings (qawl): such as “Actions are judged by intentions.”
- Actions (fi’l): such as how he performed prayer or wudu.
- Tacit approvals (taqrir): when something was done in his presence and he did not object.
- Descriptions (sifah): of his physical appearance and character.
Hadith and Sunnah
The terms are closely related. Sunnah refers to the Prophet’s way and practice, while hadith refers to the reports that transmit it.
In many contexts the words are used interchangeably.
Hadith qudsi
A hadith qudsi is a report in which the Prophet ﷺ conveys words from Allah that are not part of the Quran.
For example: “O My servants, I have forbidden oppression for Myself and have made it forbidden among you.” The meaning is from Allah, while the wording is conveyed by the Prophet ﷺ.
The Importance of Hadith
Allah commands obedience to the Prophet ﷺ
“Whoever obeys the Messenger has obeyed Allah” (An-Nisa 4:80). “And whatever the Messenger has given you, take; and what he has forbidden you, refrain from” (Al-Hashr 59:7).
Hadith explain the Quran
“And We revealed to you the message that you may make clear to the people what was sent down to them” (An-Nahl 16:44).
The Quran commands prayer; the hadith explain its times, number of units and method. The Quran commands zakat; the hadith specify which wealth, how much and when.
Hadith provide additional rulings
Some rulings are established in the Sunnah alone, such as the prohibition of marrying a woman and her paternal aunt at the same time.
Hadith show the Prophet’s example
The Prophet ﷺ is described as “an excellent pattern” (Al-Ahzab 33:21). Hadith show how he treated family, neighbours, children, the poor and even enemies.
How Hadith Were Preserved
During the Prophet’s lifetime
Companions memorised his words carefully, and some wrote them down. Abdullah ibn Amr wrote many hadith with the Prophet’s permission.
The Prophet ﷺ encouraged conveying his words: “May Allah brighten the face of a person who hears something from us and conveys it as he heard it.”
The era of the companions
After the Prophet ﷺ passed away, companions taught hadith in Madinah, Makkah, Kufa, Basra, Damascus and Egypt.
They were careful in narrating; some asked for witnesses before accepting a report.
Systematic collection
In the second century AH, the caliph Umar ibn Abd al-Aziz ordered scholars to collect hadith officially.
Scholars travelled across the Muslim world, sometimes for months, to hear a single hadith from its source. Collections were compiled and organised by topic or by narrator.
Development of hadith sciences
To protect the Sunnah from errors and fabrications, scholars developed an extraordinary methodology called ‘ulum al-hadith (sciences of hadith), including detailed biographical study of narrators.
The Structure of a Hadith
Every hadith has two parts.
Isnad (chain of narration)
The chain of people who transmitted the report, for example: “Al-Bukhari narrated from al-Humaydi, from Sufyan, from Yahya ibn Sa’id, from Muhammad ibn Ibrahim, from ‘Alqamah, from Umar ibn al-Khattab, who said: I heard the Messenger of Allah ﷺ say…”
Abdullah ibn al-Mubarak said: “The isnad is part of the religion. Were it not for the isnad, anyone would say whatever he wished.”
Matn (text)
The actual content: “Actions are only by intentions, and every person will have only what they intended…”
Scholars examine both the chain and the text to judge authenticity.
Classification of Hadith
By authenticity
| Grade | Meaning |
|---|---|
| Sahih | Authentic: continuous chain of upright, precise narrators, free from hidden defects and irregularity |
| Hasan | Good: similar to sahih but with a narrator of slightly lesser precision |
| Da’if | Weak: missing one or more conditions of acceptance |
| Mawdu’ | Fabricated: falsely attributed to the Prophet ﷺ |
Sahih and hasan hadith are accepted as evidence.
Weak hadith are not used to establish rulings or beliefs, though some scholars allowed mentioning certain weak hadith about virtues with strict conditions.
Fabricated hadith must never be narrated except to warn about them. The Prophet ﷺ said: “Whoever lies about me deliberately, let him take his seat in the Fire.”
Conditions of a sahih hadith
- Continuous chain: each narrator heard from the one before.
- Upright narrators (‘adalah): of sound religion and character.
- Precise narrators (dabt): accurate memory or careful writing.
- No irregularity (shudhudh): not contradicting more reliable narrations.
- No hidden defect (‘illah): no subtle flaw that undermines it.
By number of narrators
- Mutawatir: narrated by so many people at every level that error or collusion is impossible. Examples include the hadith about lying about the Prophet ﷺ.
- Ahad: narrated by fewer people, further divided into mashhur, ‘aziz and gharib.
By source of attribution
- Marfu’: attributed to the Prophet ﷺ.
- Mawquf: attributed to a companion.
- Maqtu’: attributed to a successor (tabi’i).
The Science of Narrators (‘Ilm al-Rijal)
Scholars compiled massive biographical dictionaries documenting thousands of narrators: their names, teachers, students, dates, travels, character and reliability.
This field, known as al-jarh wa al-ta’dil (criticism and accreditation), allowed scholars to evaluate any chain.
No other civilisation developed such a detailed system for verifying historical reports.
The Major Hadith Collections
The six books (al-Kutub al-Sittah)
- Sahih al-Bukhari by Imam Muhammad ibn Isma’il al-Bukhari (d. 256 AH). Considered the most authentic book after the Quran.
- Sahih Muslim by Imam Muslim ibn al-Hajjaj (d. 261 AH). Highly praised for its organisation.
- Sunan Abi Dawud by Abu Dawud al-Sijistani (d. 275 AH). Focused on legal hadith.
- Jami’ al-Tirmidhi by Imam al-Tirmidhi (d. 279 AH). Notable for grading hadith and mentioning scholars’ opinions.
- Sunan al-Nasa’i by Imam al-Nasa’i (d. 303 AH). Known for strict criteria.
- Sunan Ibn Majah by Ibn Majah (d. 273 AH).
Other important collections
- Al-Muwatta’ of Imam Malik, one of the earliest compiled books.
- Musnad Ahmad of Imam Ahmad ibn Hanbal, containing tens of thousands of narrations.
- Riyad al-Salihin of Imam al-Nawawi, a popular collection on character and worship.
- Al-Arba’un al-Nawawiyyah (Forty Hadith of Imam al-Nawawi), forty-two foundational hadith summarising core teachings of Islam.
Famous Foundational Hadith
- Intentions: “Actions are only by intentions.”
- Jibril: defining Islam, iman and ihsan.
- Halal and haram: “The halal is clear and the haram is clear, and between them are doubtful matters.”
- Brotherhood: “None of you truly believes until he loves for his brother what he loves for himself.”
- Good speech: “Whoever believes in Allah and the Last Day, let him speak good or remain silent.”
- Leaving what does not concern you: “Part of the excellence of a person’s Islam is leaving what does not concern him.”
Hadith and the Quran: Key Differences
| Quran | Hadith |
|---|---|
| Words and meaning from Allah | Words of the Prophet ﷺ conveying guidance |
| Recited in prayer | Not recited in prayer as Quran |
| Entirely mutawatir | Mostly ahad, some mutawatir |
| Preserved by Allah’s promise | Preserved through hadith sciences |
| Inimitable miracle | Not a linguistic challenge |
How to Engage With Hadith Today
Check authenticity
Many quotes shared online are weak or fabricated. Look for the source and grading before sharing.
Read with explanations
Hadith should be understood in context, alongside other narrations and the Quran.
Classical commentaries such as Fath al-Bari on Bukhari and al-Nawawi’s commentary on Muslim explain meanings and rulings.
Learn from qualified teachers
Deriving rulings from hadith requires expertise in Arabic, usul al-fiqh and the hadith sciences.
Apply them in life
The purpose of learning hadith is to follow the Prophet ﷺ. Choose a hadith each week and practise it.
Memorise
Begin with the Forty Hadith of al-Nawawi. The Prophet ﷺ encouraged preserving and conveying his words.
Common Misconceptions
- “The Quran alone is enough.” The Quran itself commands following the Prophet ﷺ, and many of its commands cannot be practised without the Sunnah.
- “Hadith were written too late to be reliable.” Hadith were memorised and partly written from the beginning, and verified through rigorous chains.
- “All hadith are equal.” Hadith vary in authenticity, and scholars grade them carefully.
A Simple Example of How Scholars Verify a Hadith
Imagine a scholar finds a report attributed to the Prophet ﷺ. First, they gather every chain through which it was narrated.
Next, they check each narrator in the biographical dictionaries: Was he known for honesty? Was his memory strong?
Did he live at the same time and place as the person he claims to have heard from? Then they compare the wording across chains.
If reliable narrators agree, the report gains strength. If a single narrator contradicts many stronger ones, the report may be classified as irregular.
Finally, they examine the text: does it contradict the Quran or well-established Sunnah? Only after this careful process is a grade assigned.
This is why scholars sometimes spent years on a single book, and why Imam al-Bukhari reportedly prayed two units before including each hadith in his Sahih.
The process may seem slow, but it is precisely this care that allows Muslims today to trust the Sunnah they practise.
Building a Personal Hadith Routine
- Read one hadith each morning from a reliable collection such as Riyad al-Salihin.
- Read its explanation so you understand its context.
- Write down one action you will take that day based on it.
- Share it with family at dinner.
- Review the week’s hadith every Friday.
A Four-Week Plan to Apply What You Learned About what is hadith
Knowledge sticks when it is turned into a routine. Here is a simple four-week plan to build on this guide.
- Week one: Re-read this article slowly and write down the three points that were newest to you. Share one of them with a family member, because explaining an idea is one of the best ways to understand it.
- Week two: Connect the topic to your daily Quran reading. Each day, look for one verse or phrase in your portion that relates to what is hadith, and note it in a small notebook.
- Week three: Ask questions. Bring anything that is still unclear to a qualified teacher, and correct any misunderstanding before it becomes a habit.
- Week four: Review your notebook, choose one practical change and commit to it for the next month. Small, consistent actions are more beloved to Allah than large efforts that do not last.
The Prophet ﷺ said: “The most beloved of deeds to Allah are those that are most consistent, even if they are small.”
Apply that principle here, and this topic will become part of your life rather than something you read once and forgot.
Frequently Asked Questions
What is a hadith?
A hadith is a report of the Prophet Muhammad’s sayings, actions, approvals or descriptions.
What is the difference between hadith and Sunnah?
Sunnah is the Prophet’s way of life; hadith are the reports that transmit it.
Which hadith book is the most authentic?
Sahih al-Bukhari, followed by Sahih Muslim, are considered the most authentic collections.
What makes a hadith sahih?
A continuous chain of upright and precise narrators, with no irregularity or hidden defects.
Can weak hadith be used?
They are not used to establish beliefs or rulings. Some scholars allowed mentioning certain weak hadith on virtues with strict conditions.
Final Thoughts
Hadith are a treasure that brings the Prophet ﷺ to life for every generation. Through them, Muslims learn how he prayed, smiled, taught, forgave and loved.
The extraordinary care scholars took to preserve them is a testament to the love the ummah has for its Prophet ﷺ.
Learn hadith from reliable sources, understand them with the help of scholars and bring them into your daily life. In doing so, you walk the path he walked and draw closer to Allah.
Learn the Quran and Sunnah from qualified teachers.