Hadis

Hadith ( ) are oral traditions relating to the words and deeds of Prophet Muhammad. Hadith collections are regarded as important tools for determining the Sunnah, or Muslim way of life, by all traditional schools of jurisprudence. The Arabic plural is aḥādīth (). In English academic usage, hadith is often both singular and plural.
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n. tradition

(the study of) the Prophet Muhammad's sayings/deeds

k.r(Islam) traditional collection of stories relating words or deeds of Muhammad the chief source of guidance for understanding religious questions