Riyad as-SalihinChapter 17Hadith 974
Full Sharh — Riyad as-Salihin 974
وعن أبي موسى الأشعري رضي الله عنه قال: احترق بيت بالمدينة على أهله من الليل، فلما حدث رسول الله صلى الله عليه وسلم بشأنهم قال: "إن هذه النار عدو لكم، فإذا نمتم فأطفئوها" ((متفق عليه)).
English Translation
Abu Musa Al-Ash'ari (May Allah be pleased with him) said:: A house in Al-Madinah was burnt with its occupants inside it one night. When this was reported to the Messenger of Allah (ﷺ) he said, "Fire is your enemy. So, put it out before going to bed.".
Source
Riyad as-Salihin(رياض الصالحين)
The Book of the Prohibited actions
Hadith Number
974