Sahih al-Bukhari, Hadith 6220 ⓘ
Narrated `Abdullah bin Mughaffal Al-Muzani: The Prophet forbade the throwing of stones (with the thumb and the index or middle finger), and said "It neither hunts a game nor kills (or hurts) an enemy, but it gouges out an eye or breaks a tooth."
حَدَّثَنَا آدَمُ، حَدَّثَنَا شُعْبَةُ، عَنْ قَتَادَةَ، قَالَ سَمِعْتُ عُقْبَةَ بْنَ صُهْبَانَ الأَزْدِيَّ، يُحَدِّثُ عَنْ عَبْدِ اللَّهِ بْنِ مُغَفَّلٍ الْمُزَنِيِّ، قَالَ نَهَى النَّبِيُّ صلى الله عليه وسلم عَنِ الْخَذْفِ وَقَالَ " إِنَّهُ لاَ يَقْتُلُ الصَّيْدَ، وَلاَ يَنْكَأُ الْعَدُوَّ، وَإِنَّهُ يَفْقَأُ الْعَيْنَ، وَيَكْسِرُ السِّنَّ " .
also referenced under: Book 78, Hadith 244 (In-Book) & Volume 8, Book 73, Hadith 239 (USC-MSA)