The Book of Manners and Etiquette
38/9. Chapter:
The Prohibition Of Looking Into A House
Sahih Muslim
حَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا جَرِيرٌ، عَنْ سُهَيْلٍ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " مَنِ اطَّلَعَ فِي بَيْتِ قَوْمٍ بِغَيْرِ إِذْنِهِمْ فَقَدْ حَلَّ لَهُمْ أَنْ يَفْقَئُوا عَيْنَهُ " .
Abu Huraira reported having heard Allah's Messenger (ﷺ) say: He who peeped into the house of people without their consent, it is permissible for them to put out his eyes.
Reference : Sahih Muslim 2158aIn-book reference : Book 38, Hadith 57USC-MSA web (English) reference : Book 25, Hadith 5370