Sahih al-Bukhari, Hadith 7072 ⓘ
Narrated Abu Huraira: The Prophet said, "None of you should point out towards his Muslim brother with a weapon, for he does not know, Satan may tempt him to hit him and thus he would fall into a pit of fire (Hell)"
حَدَّثَنَا مُحَمَّدٌ، أَخْبَرَنَا عَبْدُ الرَّزَّاقِ، عَنْ مَعْمَرٍ، عَنْ هَمَّامٍ، سَمِعْتُ أَبَا هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " لاَ يُشِيرُ أَحَدُكُمْ عَلَى أَخِيهِ بِالسِّلاَحِ، فَإِنَّهُ لاَ يَدْرِي لَعَلَّ الشَّيْطَانَ يَنْزِعُ فِي يَدِهِ، فَيَقَعُ فِي حُفْرَةٍ مِنَ النَّارِ " .
also referenced under: Book 92, Hadith 23 (In-Book) & Volume 9, Book 88, Hadith 193 (USC-MSA)