The Prophet ﷺ said, "Whoever slaughtered (his sacrifice) before the ʿId prayer, should slaughter again." A man stood up and said, "This is the day on which one has desire for meat," and he mentioned something about his neighbors. It seemed that the Prophet ﷺ I believed him. Then the same man added, "I have a young she-goat which is dearer to me than the meat of two sheep." The Prophet ﷺ permitted him to slaughter it as a sacrifice. I do not know whether that permission was valid only for him or for others as well.  

قَالَ النَّبِيُّ ﷺ مَنْ ذَبَحَ قَبْلَ الصَّلاَةِ فَلْيُعِدْ فَقَامَ رَجُلٌ فَقَالَ هَذَا يَوْمٌ يُشْتَهَى فِيهِ اللَّحْمُ وَذَكَرَ مِنْ جِيرَانِهِ فَكَأَنَّ النَّبِيَّ ﷺ صَدَّقَهُ قَالَ وَعِنْدِي جَذَعَةٌ أَحَبُّ إِلَىَّ مِنْ شَاتَىْ لَحْمٍ فَرَخَّصَ لَهُ النَّبِيُّ ﷺ فَلاَ أَدْرِي أَبَلَغَتِ الرُّخْصَةُ مَنْ سِوَاهُ أَمْ لاَ  

The Prophet ﷺ delivered the Khutba after offering the prayer on the Day of Nahr and said, "Whoever offers the prayer like us and slaughters like us then his Nusuk (sacrifice) will be accepted by Allah. And whoever slaughters his sacrifice before the ʿId prayer then he has not done the sacrifice." Abi Burda bin Niyar, the uncle of Al-Bara' said, "O Messenger of Allah ﷺ! I have slaughtered my sheep before the ʿId prayer and I thought today as a day of eating and drinking (not alcoholic drinks), and I liked that my sheep should be the first to be slaughtered in my house. So slaughtered my sheep and took my food before coming for the prayer." The Prophet ﷺ said, "The sheep which you have slaughtered is just mutton (not a Nusuk)." He (Abu Burda) said, "O Messenger of Allah ﷺ! I have a young she-goat which is dearer to me than two sheep. Will that be sufficient as a Nusuk on my behalf? "The Prophet ﷺ said, "Yes, it will be sufficient for you but it will not be sufficient (as a Nusuk) for anyone else after you."  

خَطَبَنَا النَّبِيُّ ﷺ يَوْمَ الأَضْحَى بَعْدَ الصَّلاَةِ فَقَالَ مَنْ صَلَّى صَلاَتَنَا وَنَسَكَ نُسُكَنَا فَقَدْ أَصَابَ النُّسُكَ وَمَنْ نَسَكَ قَبْلَ الصَّلاَةِ فَإِنَّهُ قَبْلَ الصَّلاَةِ وَلاَ نُسُكَ لَهُ فَقَالَ أَبُو بُرْدَةَ بْنُ نِيَارٍ خَالُ الْبَرَاءِ يَا رَسُولَ اللَّهِ فَإِنِّي نَسَكْتُ شَاتِي قَبْلَ الصَّلاَةِ وَعَرَفْتُ أَنَّ الْيَوْمَ يَوْمُ أَكْلٍ وَشُرْبٍ وَأَحْبَبْتُ أَنْ تَكُونَ شَاتِي أَوَّلَ مَا يُذْبَحُ فِي بَيْتِي فَذَبَحْتُ شَاتِي وَتَغَدَّيْتُ قَبْلَ أَنْ آتِيَ الصَّلاَةَ قَالَ شَاتُكَ شَاةُ لَحْمٍ قَالَ يَا رَسُولَ اللَّهِ فَإِنَّ عِنْدَنَا عَنَاقًا لَنَا جَذَعَةً هِيَ أَحَبُّ إِلَىَّ مِنْ شَاتَيْنِ أَفَتَجْزِي عَنِّي قَالَ نَعَمْ وَلَنْ تَجْزِيَ عَنْ أَحَدٍ بَعْدَكَ