Sunnah السنة

Overview

The Sunnah (السُّنَّة) is the example of the Prophet Muhammad ﷺ — his sayings, actions, and tacit approvals — preserved through chains of transmission and recorded as hadith. Together with the Quran, it forms the two primary sources of Islamic legal and ethical reasoning. Where the Quran provides the divine text, the Sunnah supplies the lived demonstration of how that text is to be understood, applied, and embodied.

Etymology

Linguistically, سنة denotes a path that has been worn smooth by repeated travel — a "way" or "customary practice." In pre-Islamic usage it referred to ancestral custom. In the technical vocabulary of the scholars of hadith and usul al-fiqh, it was narrowed to denote specifically the normative practice of the Messenger ﷺ as transmitted by the Companions.

Quranic references

The authority of the Sunnah is grounded directly in revelation. Verses commanding obedience to the Messenger establish that his guidance is not optional alongside the Quran:

• Surah Al-Hashr 59:7 — 'And whatever the Messenger has given you — take; and what he has forbidden you — refrain from.'
• Surah An-Nisa 4:80 — 'He who obeys the Messenger has obeyed Allah.'
• Surah Al-Ahzab 33:21 — 'There has certainly been for you in the Messenger of Allah an excellent pattern...'
• Surah An-Najm 53:3-4 — 'Nor does he speak from [his own] inclination. It is not but a revelation revealed.'

لَّقَدْ كَانَ لَكُمْ فِي رَسُولِ اللَّهِ أُسْوَةٌ حَسَنَةٌ

Hadith and tradition

The Prophet ﷺ explicitly commanded his community to hold to his Sunnah and warned against neglecting it:

The Prophet ﷺ said: "I have left among you two matters by which you will never go astray, as long as you hold to them: the Book of Allah and the Sunnah of His Prophet." — Muwatta Malik 1661; Sunan Ibn Majah 43 (Hasan, graded by al-Albani)

Aishah was asked about the character of the Prophet ﷺ and replied: "His character was the Quran." — Sahih Muslim 746

The Sunnah is preserved across the canonical collections — Sahih al-Bukhari, Sahih Muslim, Sunan Abi Dawud, Jami at-Tirmidhi, Sunan an-Nasa'i, and Sunan Ibn Majah.

Significance

The Sunnah furnishes the kayfiyya — the "how" — of practices the Quran obligates in summary form: the postures of salah, the rites of hajj, the calculation of zakat, and the rhythms of fasting. It also preserves the Prophet's supplications, his character, and the moral atmosphere by which the early community lived. Classical scholars including Ibn Kathir, al-Shafi'i in al-Risala, and Ibn al-Qayyim treated denial of the Sunnah's binding authority as departure from orthodoxy.

See also

• Hadith
• Hadith Qudsi
• Sirah
• Sahaba
• Tafseer
• Riyad as-Salihin

References

1. Muhammad ibn Idris al-Shafi'i, al-Risala.
2. Ibn al-Qayyim al-Jawziyya, I'lam al-Muwaqqi'in 'an Rabb al-'Alamin.
3. Ibn Kathir, Tafsir al-Quran al-Azim.
4. al-Nawawi, Riyad as-Salihin.
5. Ibn Taymiyyah, Majmu' al-Fatawa.