صحیح ابن حبان
Ibn Hibban
كتاب الأضحية
Book of Sacrifice
ذكر البيان بأن أبا بردة إنما خص لجواز أضحيته قبل الصلاة مع الأمر بإعادة الأضحية بعد الصلاة ثانيا-
Clarifying that Abu Burda was specifically allowed an early sacrifice, but others were told to repeat it after the prayer
1 hadith
Hadith 5911
Sayyiduna Bara bin Azib (may Allah be pleased with him) narrates: My maternal uncle slaughtered the animal before the Prophet (peace and blessings of Allah be upon him) had performed the prayer. The Prophet (peace and blessings of Allah be upon him) said: Your goat is just a meat goat, it has nothing to do with sacrifice. He said: O Messenger of Allah (peace and blessings of Allah be upon him)! I have a six-month-old kid goat which is better than a one-year-old animal. The Prophet (peace and blessings of Allah be upon him) said: It will be sufficient for you, but it will not be sufficient for anyone after you.