Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
quran:26:193

The Trustworthy Spirit has brought it down  

brought down by the Trustworthy Spirit, Gabriel,
القرآن:٢٦:١٩٣

نَزَلَ بِهِ الرُّوحُ الْأَمِينُ  

{نزل به الروح الأمين} جبريل.