ENOfficial
Ibn ‘Umar reported the Prophet (ﷺ) as saying, “Do not leave a fire burning in your houses while you are asleep.” (Bukhari and Muslim.)
Source: sunnah.com
Other translations
Arabic
وَعَنِ ابْنِ عُمَرَ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «لَا تَتْرُكُوا النَّارَ فِي بُيُوتِكُمْ حِينَ تنامون»
sunnah.com