That Abu Sa'id al-Khudri returned from a journey, and his family offered him meat from the sacrificial animals. He said: "I will not eat it until I ask." So he went to his maternal brother Qatada ibn al-Nu'man — who was one of those present at Badr — and asked him about that. He said: "Indeed, a matter has occurred after you [left] that abrogates what they had been forbidden from, namely eating the meat of sacrificial animals after three days."(1)

4428 — 'Ubaydullah ibn Sa'id informed us, saying: Yahya narrated to us, from Sa'd ibn Ishaq, saying: Zaynab narrated to me, from Abu Sa'id al-Khudri, that the Messenger of Allah, peace and blessings be upon him, forbade eating the meat of sacrificial animals beyond three days. Then Qatada ibn al-Nu'man arrived — and he was Abu Sa'id's maternal brother, and was one of those present at Badr — and they offered it to him. He said: "Did the Messenger of Allah, peace and blessings be upon him, not forbid it?" Abu Sa'id said: "Indeed, a matter has occurred concerning it. The Messenger of Allah, peace and blessings be upon him, forbade us from eating it beyond three days, then he granted us permission to eat it and store it."(3)

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(1) Its chain of transmission is sound. Al-Layth: he is Ibn Sa'd, and Yahya ibn Sa'id: he is al-Ansari, and al-Qasim ibn Muhammad: he is Ibn Abi Bakr al-Siddiq, and 'Abdullah ibn Khabbab: he is al-Ansari al-Najjari. It is in "Al-Sunan al-Kubra" under number (4501).
Al-Bukhari also narrated it (3997) from 'Abdullah ibn Yusuf, from al-Layth ibn Sa'd, with this chain of transmission.
Al-Bukhari also narrated it (5568) via Sulayman ibn Bilal, from Yahya ibn Sa'id, with it.
It was also narrated — with a longer context — by Ahmad (16214) via the two paths of Muhammad ibn 'Ali Abu Ja'far al-Baqir and Ishaq ibn Yasar, from 'Abdullah ibn Khabbab, with it.
See the following narration.
(2) In (R) and (M) and a copy in the margin of (K): a brother to Abu.
(3) Zaynab: she is the daughter of Ka'b ibn 'Ujra. There is disagreement regarding her being a Companion. Her two nephews' sons narrated from her, and Ibn Hibban mentioned her in "Al-Thiqat." The rest of the men in the chain of transmission are trustworthy. 'Ubaydullah ibn Sa'id: he is Abu Qudama al-Sarakhsi, and Yahya: he is Ibn Sa'id al-Qattan, and Sa'd ibn Ishaq: he is Ibn Ka'b ibn 'Ujra al-Balawi al-Madani. There has occurred an inversion in the text of this hadith, for in it the one refraining from eating is Qatada ibn al-Nu'man, and that =