(49) باب لاَ تُتْرَكُ النَّارُ فِي الْبَيْتِ عِنْدَ النَّوْمِ
Narrated Abu Musa:
One night a house in Medina was burnt with its occupants. The Prophet (ﷺ) spoke about them, saying, "This fire is indeed your enemy, so whenever you go to bed, put it out to protect yourselves."
Reference: Sahih al-Bukhari 6294
In-book reference: Book 79, Hadith 66
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 74, Hadith 309