2793 — Mūsā ibn Ismāʿīl narrated to us, Wahayb narrated to us, from Ayyūb, from Abū Qilābah, from Anas: that the Prophet, peace and blessings be upon him, sacrificed seven camels standing with his own hand, and offered the udhiyah in Medina with two horned rams that were white mixed with black.

2794 — Muslim ibn Ibrāhīm narrated to us, Hishām narrated to us, from Qatādah, from Anas: that the Prophet, peace and blessings be upon him, offered the udhiyah with two horned rams that were white mixed with black. He would slaughter, say the takbīr, and mention the name of Allah, and place his foot on their sides.

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And it is narrated from Abū Hurayrah and Ibn ʿUmar that they used to do that. Mālik, al-Awzāʿī, al-Shāfiʿī, and Aḥmad permitted it. Al-Thawrī and Abū Ḥanīfah disapproved of it.

(1) Its chain is sound. Wahayb: he is Ibn Khālid.
Al-Bukhārī also narrated it (1551), (1712), (1714), and (5554) via the path of Ayyūb al-Sakhtiyānī, with this chain.
It is in the Musnad of Aḥmad (13831).
It was also narrated in a similar manner by al-Bukhārī (5553) via the path of ʿAbd al-ʿAzīz ibn Ṣuhayb, and by al-Nasāʾī (4388) via the path of Muḥammad ibn Sīrīn, and (4386) via the path of Thābit al-Bunānī, all three from Anas.
It is in the Musnad of Aḥmad (11984), (12120), and (12830).
See what follows it.
Al-Ḥāfiẓ al-Mundhirī was heedless in his "Mukhtaṣar al-Sunan," saying: "Al-Bukhārī narrated only the story of the two rams in a similar manner," even though he narrated the entire hadith in the three places indicated.
Al-Khaṭṭābī said: "Al-amlaḥ among rams is the one in whose white wool there are black strands."

(2) Its chain is sound. Qatādah: he is Ibn Diʿāmah al-Sadūsī, and Hishām: he is Ibn Abī ʿAbd Allāh al-Dastuwāʾī.