The Prophet ﷺ said, "Do not keep the fire burning in your houses when you go to bed."  

عَنِ النَّبِيِّ ﷺ قَالَ {لاَ تَتْرُكُوا النَّارَ فِي بُيُوتِكُمْ حِينَ تَنَامُونَ}  

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."  

احْتَرَقَ بَيْتٌ بِالْمَدِينَةِ عَلَى أَهْلِهِ مِنَ اللَّيْلِ فَحُدِّثَ بِشَأْنِهِمُ النَّبِيُّ ﷺ قَالَ إِنَّ هَذِهِ النَّارَ إِنَّمَا هِيَ عَدُوٌّ لَكُمْ فَإِذَا نِمْتُمْ فَأَطْفِئُوهَا عَنْكُمْ  

Messenger of Allah ﷺ said, "(At bedtime) cover the utensils, close the doors, and put out the lights, lest the evil creature (the rat) should pull away the wick and thus burn the people of the house."  

قَالَ رَسُولُ اللَّهِ ﷺ خَمِّرُوا الآنِيَةَ وَأَجِيفُوا الأَبْوَابَ وَأَطْفِئُوا الْمَصَابِيحَ فَإِنَّ الْفُوَيْسِقَةَ رُبَّمَا جَرَّتِ الْفَتِيلَةَ فَأَحْرَقَتْ أَهْلَ الْبَيْتِ