If a person were to cast a glance in your (house) without permission, and you had in your hand a staff and you would have thrust that in his eyes, there is no harm for you.

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لَوْ أَنَّ رَجُلاً اطَّلَعَ عَلَيْكَ بِغَيْرِ إِذْنٍ فَخَذَفْتَهُ بِحَصَاةٍ فَفَقَأْتَ عَيْنَهُ مَا كَانَ عَلَيْكَ مِنْ جُنَاحٍ

[Machine] On the authority of the Messenger of Allah ﷺ , he said, "If a person were to look at you with evil intent, and you were to gouge out their eye, you would not be blamed for it." Isma'il narrated this to us on the authority of Aqib, who narrated it to us on the authority of 'Isa ibn Hammad, who narrated it to us on the authority of Layth, who narrated it to us on the authority of Ibn 'Ajlān, who narrated it to us on the authority of Abu al-Zinad, who narrated it to us on the authority of al-A'raj, who narrated it to us on the authority of Abu Hurairah, who narrated it to us on the authority of the Messenger of Allah ﷺ with the same wording.

عَنْ رَسُولِ اللَّهِ ﷺ قَالَ «لَوْ أَنَّ إِنْسَانًا اطَّلَعَ عَلَيْكَ فَحَذَفْتَ عَيْنَهُ فَفَقَأْتَهَا لَمَا كَانَ عَلَيْكَ جُنَاحٌ» أَخْبَرَنَاهُ إِسْمَاعِيلُ فِي عَقِبِهِ حَدَّثَنَا عِيسَى بْنُ حَمَّادٍ أَخْبَرَنَا اللَّيْثُ عَنِ ابْنِ عَجْلَانَ عَنْ أَبِي الزِّنَادِ عَنِ الْأَعْرَجِ عَنْ أَبِي هُرَيْرَةَ عَنْ رَسُولِ اللَّهِ ﷺ بِمِثْلِ ذَلِكَ

"لَوْ أنَّ امْرءًا اطَّلَعَ عَلَيكَ بِغَيرِ إِذنٍ فَحَذَفْتَهُ بِحَصَاةٍ فَفَقَأتَ عَينَهُ، لَمْ يكُنْ عَلَيكَ جُنَاحٌ".

"لَوْ أَنَّ رَجُلًا اطَّلَعَ عَلَيكَ بِغَيرِ إِذْنِكَ فَحَذَفْتَهُ بِحَصَاةٍ فَفَقَأتَ عَينَهُ، مَا كَانَ عَلَيكِ مِن جُنَاح".