“Allah has prescribed Al-Ihsan (proficiency) in all things. So if you kill, then kill well, and if you slaughter, then slaughter well. Let one of you sharpen his blade and spare suffering to the animal he slaughters.”
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ إِنَّ اللَّهَ ﷻ كَتَبَ الإِحْسَانَ عَلَى كُلِّ شَىْءٍ فَإِذَا قَتَلْتُمْ فَأَحْسِنُوا الْقِتْلَةَ وَإِذَا ذَبَحْتُمْ فَأَحْسِنُوا الذَّبْحَ وَلْيُحِدَّ أَحَدُكُمْ شَفْرَتَهُ وَلْيُرِحْ ذَبِيحَتَهُ