Sunan Abi Dawud, Book 41, Hadith 5153 (USC-MSA) ⓘ
Narrated AbuHurayrah: The Prophet said: If anyone peeps into the house of a people without their permission and he knocks out his eye, no responsibility is incurred for his eye.
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا حَمَّادٌ، عَنْ سُهَيْلٍ، عَنْ أَبِيهِ، قَالَ حَدَّثَنَا أَبُو هُرَيْرَةَ، أَنَّهُ سَمِعَ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " مَنِ اطَّلَعَ فِي دَارِ قَوْمٍ بِغَيْرِ إِذْنِهِمْ فَفَقَأُوا عَيْنَهُ فَقَدْ هَدَرَتْ عَيْنُهُ " .
also referenced under: Hadith 5172 (DarusSalam) & Hadith 5153 (Hasan)