Narrator:Shaddād ibn Aws
عَنْ أَبِي يَعْلَى شَدَّادِ بْنِ أَوْسٍ رَضِيَ اللهُ عَنْهُ عَنْ رَسُولِ اللَّهِ صلى الله عليه و سلم قَالَ: "إنَّ اللَّهَ كَتَبَ الْإِحْسَانَ عَلَى كُلِّ شَيْءٍ، فَإِذَا قَتَلْتُمْ فَأَحْسِنُوا الْقِتْلَةَ، وَإِذَا ذَبَحْتُمْ فَأَحْسِنُوا الذِّبْحَةَ، وَلْيُحِدَّ أَحَدُكُمْ شَفْرَتَهُ، وَلْيُرِحْ ذَبِيحَتَهُ". [رَوَاهُ مُسْلِمٌ].
On the authority of Abu Ya’la Shaddad bin Aws (may Allah be pleased with him), that the Messenger of Allah (peace and blessings of Allah be upon him) said:
Verily Allah has prescribed ihsan (proficiency, perfection) in all things. So if you kill then kill well; and if you slaughter, then slaughter well. Let each one of you sharpen his blade and let him spare suffering to the animal he slaughters.” [Muslim]
Reported by Muslim (No. 1955a, 1955b), Abu Dawud (No. 2815), At-Tirmidhi (No. 1409), An-Nasa’i (No. 4405, 4411, 4412, 4413, 4414), Ibn Majah (No. 3170), Ahmad (No. 16490, 16494, 16506, 16516) and Ad-Darimi (No. 1888). Cited in The Forty Hadith of an-Nawawi (No. 17).