سنن أبي داود

Narrated Shaddad b. Aws: There are two characteristics that I heard the Messenger of Allah (ﷺ) say: Allah has decreed that everything should be done in a good way, so when you kill use a good method. The version of the narrators other than Muslim says: "So kill in a good manner." And when you slaughter, you should use a good method, for one of you should sharpen his knife, and give the animal as little pain as possible.