That he heard Messenger of Allah ﷺ saying, "We (Muslims) are the last (to come) but (will be) the foremost (on the Day of Resurrection)." And added, "If someone is peeping (looking secretly) into your house without your permission, and you throw a stone at him and destroy his eyes, there will be no blame on you."  

سَمِعَ رَسُولَ اللَّهِ ﷺ يَقُولُ نَحْنُ الآخِرُونَ السَّابِقُونَ يَوْمَ الْقِيَامَةِ وَبِإِسْنَادِهِ لَوِ اطَّلَعَ فِي بَيْتِكَ أَحَدٌ وَلَمْ تَأْذَنْ لَهُ خَذَفْتَهُ بِحَصَاةٍ فَفَقَأْتَ عَيْنَهُ مَا كَانَ عَلَيْكَ مِنْ جُنَاحٍ  

Humaid said, "A man peeped into the house of the Prophet ﷺ and the Prophet ﷺ aimed an arrow head at him to hit him." I asked, "Who told you that?" He said, "Anas bin Malik" (See Hadith No. 258 and 259, Vol. 8)  

أَنَّ رَجُلاً اطَّلَعَ فِي بَيْتِ النَّبِيِّ ﷺ فَسَدَّدَ إِلَيْهِ مِشْقَصًا فَقُلْتُ مَنْ حَدَّثَكَ قَالَ أَنَسُ بْنُ مَالِكٍ