صحيح البخاري Sahih Bukhari كتاب العيدين The Book of The Two Eid (Prayers and Festivals).
بَابُ كَلاَمِ الإِمَامِ وَالنَّاسِ فِي خُطْبَةِ الْعِيدِ، وَإِذَا سُئِلَ الإِمَامُ عَنْ شَيْءٍ وَهْوَ يَخْطُبُ:

(23) Chapter. The talk of the Imam and if the Imam is asked about something while he is delivering the Khutba.

3 hadith
Hadith 983
حَدَّثَنَا مُسَدَّدٌ ، قَالَ : حَدَّثَنَا أَبُو الْأَحْوَصِ ، قَالَ : حَدَّثَنَا مَنْصُورُ بْنُ الْمُعْتَمِرِ ، عَنِ الشَّعْبِيِّ ، عَنِ الْبَرَاءِ بْنِ عَازِبٍ ، قَالَ : خَطَبَنَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَوْمَ النَّحْرِ بَعْدَ الصَّلَاةِ ، فَقَالَ : " مَنْ صَلَّى صَلَاتَنَا وَنَسَكَ نُسْكَنَا فَقَدْ أَصَابَ النُّسُكَ ، وَمَنْ نَسَكَ قَبْلَ الصَّلَاةِ فَتِلْكَ شَاةُ لَحْمٍ ، فَقَامَ أَبُو بُرْدَةَ بْنُ نِيَارٍ ، فَقَالَ : يَا رَسُولَ اللَّهِ وَاللَّهِ لَقَدْ نَسَكْتُ قَبْلَ أَنْ أَخْرُجَ إِلَى الصَّلَاةِ وَعَرَفْتُ أَنَّ الْيَوْمَ يَوْمُ أَكْلٍ وَشُرْبٍ فَتَعَجَّلْتُ وَأَكَلْتُ وَأَطْعَمْتُ أَهْلِي وَجِيرَانِي ، فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ : تِلْكَ شَاةُ لَحْمٍ ، قَالَ : فَإِنَّ عِنْدِي عَنَاقَ جَذَعَةٍ هِيَ خَيْرٌ مِنْ شَاتَيْ لَحْمٍ فَهَلْ تَجْزِي عَنِّي ، قَالَ : نَعَمْ ، وَلَنْ تَجْزِيَ عَنْ أَحَدٍ بَعْدَكَ " .
Narrated Al-Bara' bin `Azib: On the day of Nahr Allah's Apostle delivered the Khutba after the `Id prayer and said, "Anyone who prayed like us and slaughtered the sacrifice like we did then he acted according to our (Nusuk) tradition of sacrificing, and whoever slaughtered the sacrifice before the prayer, then that was just mutton (i.e. not sacrifice)." Abu Burda bin Naiyar stood up and said, "O Allah's Apostle! By Allah, I slaughtered my sacrifice before I offered the (Id) prayer and thought that today was the day of eating and drinking (nonalcoholic drinks) and so I made haste (in slaughtering) and ate and also fed my family and neighbors." Allah's Apostle said, "That was just mutton (not a sacrifice)." Then Abu Burda said, "I have a young she-goat and no doubt, it is better than two sheep. Will that be sufficient as a sacrifice for me?" The Prophet replied, "Yes. But it will not be sufficient for anyone else (as a sacrifice), after you."
Hadith Reference Sahih Bukhari / The Book of The Two Eid (Prayers and Festivals). / Hadith: 983
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة
Hadith 984
حَدَّثَنَا حَامِدُ بْنُ عُمَرَ ، عَنْ حَمَّادِ بْنِ زَيْدٍ ، عَنْ أَيُّوبَ ، عَنْ مُحَمَّدٍ ، أَنَّ أَنَسَ بْنَ مَالِكٍ قَالَ : " إِنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ صَلَّى يَوْمَ النَّحْرِ ، ثُمَّ خَطَبَ ، فَأَمَرَ مَنْ ذَبَحَ قَبْلَ الصَّلَاةِ أَنْ يُعِيدَ ذَبْحَهُ ، فَقَامَ رَجُلٌ مِنْ الْأَنْصَارِ فَقَالَ : يَا رَسُولَ اللَّهِ جِيرَانٌ لِي إِمَّا قَالَ بِهِمْ خَصَاصَةٌ وَإِمَّا قَالَ بِهِمْ فَقْرٌ وَإِنِّي ذَبَحْتُ قَبْلَ الصَّلَاةِ وَعِنْدِي عَنَاقٌ لِي أَحَبُّ إِلَيَّ مِنْ شَاتَيْ لَحْمٍ ، فَرَخَّصَ لَهُ فِيهَا " .
Narrated Anas bin Malik: Allah's Apostle offered the prayer on the day of Nahr and then delivered the Khutba and ordered that whoever had slaughtered his sacrifice before the prayer should repeat it, that is, should slaughter another sacrifice. Then a person from the Ansar stood up and said, "O Allah's Apostle! because of my neighbors (he described them as being very needy or poor) I slaughtered before the prayer. I have a young she-goat which, in my opinion, is better than two sheep." The Prophet gave him the permission for slaughtering it as a sacrifice.
Hadith Reference Sahih Bukhari / The Book of The Two Eid (Prayers and Festivals). / Hadith: 984
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة
Hadith 985
حَدَّثَنَا مُسْلِمٌ ، قَالَ : حَدَّثَنَا شُعْبَةُ ، عَنْ الْأَسْوَدِ ، عَنْ جُنْدَبٍ ، قَالَ : " صَلَّى النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَوْمَ النَّحْرِ ، ثُمَّ خَطَبَ ، ثُمَّ ذَبَحَ ، فَقَالَ : مَنْ ذَبَحَ قَبْلَ أَنْ يُصَلِّيَ فَلْيَذْبَحْ أُخْرَى مَكَانَهَا ، وَمَنْ لَمْ يَذْبَحْ فَلْيَذْبَحْ بِاسْمِ اللَّهِ " .
Narrated Jundab: On the day of Nahr the Prophet offered the prayer and delivered the Khutba and then slaughtered the sacrifice and said, "Anybody who slaughtered (his sacrifice) before the prayer should slaughter another animal in lieu of it, and the one who has not yet slaughtered should slaughter the sacrifice mentioning Allah's name on it."
Hadith Reference Sahih Bukhari / The Book of The Two Eid (Prayers and Festivals). / Hadith: 985
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة