Nahr (Slaughtering) with one’s own hands — Sahih al-Bukhari 1712

The narration of Anas abridged, saying, "The Prophet (ﷺ) slaughtered seven Budn (camels) while standing, with his own hands. On the day of `Id-ul-Adha he slaughtered (sacrificed) two horned rams, black and white in color.