圣训（阿拉伯语：الحديث‎，罗马拼音：al-ḥadīth，复数 aḥadīth），意为“叙述”，是伊斯兰教先知穆罕默德的言行录，由后人所编。圣训形成于8至9世纪，其主要内容是先知对教义、律例、制度、礼仪及日常生活各种问题的意见主张。也包括他的行为准则和道德风范。圣门弟子谈论宗教、经训和实践教理等的言行，凡经他认可和赞许的也被列为圣训的范围，但有的属于伪托。伊斯兰传统的教法学派皆认为圣训是用来落实逊奈（穆罕默德的言行，或译「先知行谊」、「圣行」）的重要工具。圣训是伊斯兰教的重要文化遗产之一。

A hadith (/ˈhædɪθ/ or /hɑːˈdiːθ/; Arabic:حديث‎ ḥadīṯ, plural: hadithat, أحاديث, ʼaḥādīṯ) is one of various reports describing the words, actions, or habits of the Islamic prophet, Muhammad. The term comes from the Arabic meaning a "report", "account" or "narrative". Hadith are second only to the Quran in developing Islamic jurisprudence, and regarded as important tools for understanding the Quran and commentaries (tafsir) written on it. Many important elements of traditional Islam, such as the five salat prayers, are mentioned in hadith but not in the Quran.