"I said: 'O Messenger of Allah, we are going to meet the enemy tomorrow, and we do not have any knives.' He said: 'If the blood is shed and the name of Allah is mentioned, then eat, unlike (it is slaughtered) with teeth or nails." Then the Messenger of Allah got some spoils of war and a camel ran away. A man shot and arrow at it and stopped it. He (the Prophet) said; 'Some of these animals - or 'these camels'- 'are untamed like wild animals, so if one of them goes out of your control, do the same."' (Sahih ) (Using translation from Nasāʾī 4409)  

قُلْتُ يَا رَسُولَ اللهِ إِنَّا لَاقُو الْعَدُوِّ غَدًا وَلَيْسَ مَعَنَا مُدًى قَالَ «مَا أَنْهَرَ الدَّمَ وَذُكِرَ اسْمُ اللهِ فَكُلْ مَا خَلَا السِّنِّ وَالظُّفْرِ» قَالَ وَأَصَابَ رَسُولُ اللهِ ﷺ نَهْبًا فَنَدَّ بَعِيرٌ فَرَمَاهُ رَجُلٌ بِسَهْمٍ فَحَبَسَهُ فَقَالَ إِنَّ لِهَذِهِ النَّعَمِ أَوْ قَالَ الْإِبِلِ أَوَابِدَ كَأَوَابِدِ الْوَحْشِ فَمَا غَلَبَكُمْ مِنْهَا فَافْعَلُوا بِهِ هَكَذَا  

I said, "O Messenger of Allah ﷺ! We are going to face the enemy tomorrow and we do not have knives." He said, "Hurry up (in killing the animal). If the killing tool causes blood to flow out, and if Allah's Name is mentioned, eat (of the slaughtered animal). But do not slaughter with a tooth or a nail. I will tell you why: As for the tooth, it is a bone; and as for the nail, it is the knife of Ethiopians." Then we got some camels and sheep as war booty, and one of those camels ran away, whereupon a man shot it with an arrow and stopped it. Messenger of Allah ﷺ said, "Of these camels there are some which are as wild as wild beasts, so if one of them (runs away and) makes you tired, treat it in this manner." (Using translation from Bukhārī 5509)  

قُلْتُ يَا رَسُولَ اللهِ إِنَّا لَاقُو الْعَدُوِّ غَدًا وَلَيْسَتْ مَعَنَا مُدًى قَالَ «مَا أَنْهَرَ الدَّمَ وَذُكِرَ اسْمُ اللهِ ﷻ فَكُلْ لَيْسَ السِّنَّ وَالظُّفْرَ وَسَأُحَدِّثُكُمْ أَمَّا السِّنُّ فَعَظْمٌ وَأَمَّا الظُّفُرُ فَمُدَى الْحَبَشَةِ وَأَصَبْنَا نُهْبَةَ إِبِلٍ أَوْ غَنَمٍ فَنَدَّ مِنْهَا بَعِيرٌ فَرَمَاهُ رَجُلٌ بِسَهْمٍ فَحَبَسَهُ» فَقَالَ رَسُولُ اللهِ ﷺ «إِنَّ لِهَذِهِ الْإِبِلِ أَوَابِدَ كَأَوَابِدِ الْوَحْشِ فَإِذَا غَلَبَكُمْ مِنْهَا شَيْءٌ فَافْعَلُوا بِهِ هَكَذَا»  

"There are two things that I memorized from the Messenger of Allah, who said: 'Allah has decreed proficiency in all things, so when you kill, kill well, and when you slaughter, slaughter well. Let one of you sharpen his blade and spare suffering to the animal he slaughters.'" (Sahih) (Using translation from Nasāʾī 4405)  

سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ «إِنَّ اللهَ كَتَبَ الْإِحْسَانَ عَلَى كُلِّ شَيْءٍ فَإِذَا قَتَلْتُمْ فَأَحْسِنُوا الْقِتْلَةَ وَإِذَا ذَبَحْتُمْ فَأَحْسِنُوا الذِّبْحَةَ لِيُحِدَّ أَحَدُكُمْ إِذَا ذَبَحَ شَفْرَتَهُ وَلْيُرِحْ ذَبِيحَتَهُ»