Sahih

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What is Sahih?

Sahih comes from the Arabic root s-h-h, meaning soundness, correctness, or health. In the science of hadith, Sahih is the technical term used to classify a narration that has been rigorously verified as authentic — meaning scholars are confident it genuinely reflects what the Prophet Muhammad ﷺ said, did, or approved of.

Classical scholars of hadith established precise conditions for a narration to earn the Sahih classification: the chain of narrators (isnad) must be continuous with no missing links, every narrator must be known for trustworthiness and moral uprightness ('adalah), each narrator must be known for precise memory and accuracy (dabt), and the narration must contain no hidden defect (illah) or contradict more reliable reports (shudhudh). Only when all these conditions are satisfied is a hadith graded Sahih.

This rigorous classification system gave rise to landmark collections, most famously Sahih al-Bukhari and Sahih Muslim, compiled by Imam al-Bukhari and Imam Muslim respectively, who each traveled extensively and examined thousands of narrations to include only those meeting the highest standard. Together, these two works are often called "Sahihayn" (the two Sahihs) and are regarded as the most reliable hadith collections in Sunni Islam, second in authority only to the Qur'an itself.

Practically, the Sahih classification matters enormously for how Islamic rulings, beliefs, and practices are formed: scholars prioritize Sahih narrations when deriving law (fiqh) or explaining matters of faith ('aqidah), while weaker or fabricated reports are set aside or clearly flagged. For everyday Muslims, understanding this distinction encourages care in what is quoted or shared as a prophetic teaching, valuing accuracy over convenience.

Examples of Sahih

• Referencing a source: A speaker cites "this is reported in Sahih al-Bukhari" to indicate the hadith's high level of authenticity.
• Studying hadith sciences: A student learns to check whether a hadith's chain meets all five conditions required for a Sahih grading.
• Correcting a misquote: A teacher points out that a popular saying attributed to the Prophet ﷺ is not actually Sahih and lacks a reliable chain.
• Choosing collections to study: A new student of Islamic knowledge begins with Sahih al-Bukhari and Sahih Muslim before moving to other collections.

References in Qur'an & Hadith

The Prophet ﷺ said: "Whoever attributes something to me that I did not say, let him take his seat in the Fire." — Sahih al-Bukhari 110

"Nor does he speak from [his own] inclination. It is not but a revelation revealed." — Surah An-Najm 53:3-4