Sahih Muslim · Hadith 5200

حدثنا يحيى بن يحيى، أخبرنا وكيع، عن شعبة، عن قتادة، عن أنس، قال ضحى رسول الله صلى الله عليه وسلم بكبشين أملحين أقرنين قال ورأيته يذبحهما بيده ورأيته واضعا قدمه على صفاحهما قال وسمى وكبر ‏.‏

Anas reported that Allah's Messenger (may peace be upon him) sacrificed two horned rams of white colour with black markings over them. He also stated: I saw him sacrificing them with his own hand and saw him placing his foot on their sides, and recited the name of Allah and Glorified Him.

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).