Hadis Sambhar — Hadith #38044

The Messenger of Allah (peace and blessings of Allah be upon him) said, "Allah, the Exalted, has made it obligatory to perform every deed well (or with grace). So when you kill (someone), kill well, and when you slaughter (an animal), Slaughter well. Every man should sharpen his knife and give rest to the slaughtered animal.” (i.e. completing the work of slaughter quickly.) (Muslim 5167)