Abu Hurairah (RAA) narrated that The Messenger of Allah (ﷺ) said:

“If anyone spies on you (tries to look at you) without your permission, and you thereupon throw a stone at him and because of it he lost his eye, you are not to be bIamed.” Agreed upon. In another version by Ahmad and an-Nasa'i and graded as Sahih by Ibn Hibban, “He has no right for Diyah or Qisas.”

وَعَنْ أَبِي هُرَيْرَةَ ‏- رضى الله عنه ‏- قَالَ: قَالَ أَبُو اَلْقَاسِمِ ‏- صلى الله عليه وسلم ‏-{ لَوْ أَنَّ اِمْرَأً اِطَّلَعَ عَلَيْكَ بِغَيْرِ إِذْنٍ, فَحَذَفْتَهُ بِحَصَاةٍ, فَفَقَأْتَ عَيْنَهُ, لَمْ يَكُنْ عَلَيْكَ جُنَاحٌ } مُتَّفَقٌ عَلَيْهِ [1]‏ .‏ وَفِي لَفْظٍ لِأَحْمَدَ, وَالنَّسَائِيِّ, وَصَحَّحَهُ اِبْنُ حِبَّانَ: { فَلَا دِيَةَ لَهُ وَلَا قِصَاصَ } .‏ [2]‏ .‏