'Abdullah ibn Mughaffal al-Muzani said, "The Messenger of Allah, may Allah bless him and grant him peace, forbade slings. He said, 'They do not kill game nor injure the enemy. They gouge the eye and break the teeth.'"

عَنْ عَبْدِ اللهِ بْنِ مُغَفَّلٍ الْمُزَنِيِّ قَالَ نَهَى رَسُولُ اللهِ ﷺ عَنِ الْخَذْفِ وَقَالَ إِنَّهُ لاَ يَقْتُلُ الصَّيْدَ وَلاَ يُنْكِي الْعَدُوَّ وَإِنَّهُ يَفْقَأُ الْعَيْنَ وَيَكْسِرُ السِّنَّ