There are two characteristics that I heard the Messenger of Allah ﷺ say: Allah has decreed that everything should be done in a good way, so when you kill use a good method. The version of the narrators other than Muslim says: "So kill in a good manner." And when you slaughter, you should use a good method, for one of you should sharpen his knife, and give the animal as little pain as possible. (Using translation from Abū Dāʾūd 2815)   

حَفِظْتُ مِنْ رَسُولِ اللهِ ﷺ خَصْلَتَيْنِ قَالَ إِنَّ اللهَ تَبَارَكَ كَتَبَ الْإِحْسَانَ عَلَى كُلِّ شَيْءٍ فَإِذَا قَتَلْتُمْ فَأَحْسِنُوا الْقِتْلَةَ وَإِذَا ذَبَحْتُمْ فَأَحْسِنُوا الذِّبْحَةَ وَلْيُحِدَّ أَحَدُكُمْ شَفْرَتَهُ وَلْيُرِحْ ذَبِيحَتَهُ  

[Machine] "Allah ﷺ said, 'Verily, Allah is Good and He loves goodness. He has prescribed kindness in all things. So, when you kill, do it in the best manner, and when you slaughter, do it in the best manner. Let one of you sharpen his knife and spare sufferings to the animal he slaughters.'"  

اللهِ ﷺ قَالَ إِنَّ اللهَ مِحْسَانٌ كَتَبَ الْإِحْسَانَ عَلَى كُلِّ شَيْءٍ فَإِذَا قَتَلْتُمْ فَأَحْسِنُوا الْقِتْلَةَ وَإِذَا ذَبَحَ أَحَدُكُمْ فَلْيُحْسِنْ ذِبْحَتَهُ وَلْيُحِدَّ أَحَدُكُمْ شَفْرَتَهُ وَلْيُرِحْ ذَبِيحَتَهُ  

[Machine] The Messenger of Allah ﷺ ordered the marking of the animals and to cover them, then he said: When one of you slaughters, let him prepare such and such.  

أَمَرَ رَسُولُ اللهِ ﷺ بِحَدِّ الشِّفَارِ وَأَنْ تُوَارَى عَنِ الْبَهَائِمِ ثُمَّ قَالَ إِذَا ذَبَحَ أَحَدُكُمْ فَلْيُجْهِزْ كَذَا  

[Machine] The Messenger of Allah ﷺ ordered the covering of the private parts and hiding them from animals, and he said, "When one of you slaughters, let him prepare (the animal)."  

أَمَرَ رَسُولُ اللهِ ﷺ بِحَدِّ الشِّفَارِ وَأَنْ تُوَارَى عَنِ الْبَهَائِمِ وَقَالَ إِذَا ذَبَحَ أَحَدُكُمْ فَلْيُجْهِزْ  

[Machine] The Messenger of Allah, ﷺ , came across a man who had placed his foot on the side of a sheep, while he was sharpening his knife and the sheep was looking at him. The Messenger of Allah, ﷺ , said, "Why didn't you slaughter it before this? Do you want to kill it in a slow and painful way?" Hammad ibn Zaid reported from 'Asim that he said, "Do you want to kill it multiple deaths?" And Ma'mar reported from 'Asim that he sent it and did not mention Ibn Abbas in it.  

قَامَ رَسُولُ اللهِ ﷺ عَلَى رَجُلٍ وَاضِعٍ رِجْلَهُ عَلَى صَفْحَةِ شَاةٍ وَهُوَ يُحِدُّ شَفْرَتَهُ وَهِيَ تَلْحَظُ إِلَيْهِ بِبَصَرِهَا فَقَالَ أَفَلَا قَبْلَ هَذَا؟ أَتُرِيدُ أَنْ تُمِيتَهَا مَوْتًا تَابَعَهُ حَمَّادُ بْنُ زَيْدٍ عَنْ عَاصِمٍ وَقَالَ أَتُرِيدُ أَنْ تُمِيتَهَا مَوْتَاتٍ وَرَوَاهُ مَعْمَرٌ عَنْ عَاصِمٍ فَأَرْسَلَهُ لَمْ يَذْكُرْ فِيهِ ابْنَ عَبَّاسٍ  

[Machine] A man sharpened a knife and took a sheep to slaughter it. Umar hit him with a stone and said, "Do you torture the soul? Haven't you done this before taking it?"  

أَنَّ رَجُلًا حَدَّ شَفْرَةً وَأَخَذَ شَاةً لِيَذْبَحَهَا فَضَرَبَهُ عُمَرُ ؓ بِالدِّرَّةِ وَقَالَ أَتُعَذِّبُ الرُّوحَ؟ أَلَا فَعَلْتَ هَذَا قَبْلَ أَنْ تَأْخُذَهَا  

[Machine] That Umar saw a man dragging a sheep to slaughter it, so he struck him with a stick and said to him, "Water it, you have no mercy towards it until its beautiful death."  

أَنَّ عُمَرَ ؓ رَأَى رَجُلًا يَجُرُّ شَاةً لِيَذْبَحَهَا فَضَرَبَهُ بِالدِّرَّةِ وَقَالَ سُقْهَا لَا أُمَّ لَكَ إِلَى الْمَوْتِ سَوْقًا جَمِيلًا