Hadithcore
Riyad as-Salihin, 639

Abu Ya'la Shaddad bin 'Aus (May Allah be pleased with him) reported:

Messenger of Allah (ﷺ) said, "Verily Allah has prescribed Ihsan (kindness) for everything. So when you kill, you must make the killing in the best manner; when you slaughter, make your slaughter in the best manner. Let one of you sharpen his knife and give ease to his animal (in order to reduce his pain)." <b>[Muslim]</b>.

وعن أبى يعلى شداد بن أوس رضي الله عنه، عن رسول الله صلى الله عليه وسلم قال‏:‏ “إن الله كتب الإحسان على كل شئ، فإذا قتلتم فأحسنوا القتلة وإذا ذبحتم فأحسنوا الذبحة، وليحد أحدكم شفرته وليرح ذبيحته” ‏(‏‏(‏رواه مسلم‏)‏‏)‏‏.‏

References1 variant
In-Book Reference
Introduction, Hadith 639
Sharh · explanationclick to expand
<b>Guidance from the Hadith:</b><br> 1) We are required to do everything in a perfect manner and to show kindness and compassion towards all creation.<br> 2) Giving comfort to the sacrificial animal is not limited to merely sharpening the blade, but we should also sever the jugular veins powerfully.<br> <br> <b>Benefit:</b><br> Part of the slaughtering method that comforts the animal is that you put your leg on the animal’s neck and let its legs move freely. This is easier for the animal and it causes stronger outflow of the blood.
Related hadiths6
Compare isnād across 6 related chains →