Hadis Sambhar — Hadith #38550

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 in Jihad or Hadd), kill it well and when (an animal) Slaughter, then slaughter well. Every man should sharpen his knife and give rest to the slaughtered animal.” (i.e. completing the work of slaughter quickly.) (Muslim no. 5167)