Sahih Bukhari Volume 7, Book 73, Hadith 5563

حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ إِبْرَاهِيمَ، عَنْ أَيُّوبَ، عَنْ مُحَمَّدٍ، عَنْ أَنَسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏"‏ مَنْ ذَبَحَ قَبْلَ الصَّلاَةِ فَلْيُعِدْ ‏"‏‏.‏ فَقَالَ رَجُلٌ هَذَا يَوْمٌ يُشْتَهَى فِيهِ اللَّحْمُ ـ وَذَكَرَ مِنْ جِيرَانِهِ فَكَأَنَّ النَّبِيَّ صلى الله عليه وسلم عَذَرَهُ ـ وَعِنْدِي جَذَعَةٌ خَيْرٌ مِنْ شَاتَيْنِ فَرَخَّصَ لَهُ النَّبِيُّ صلى الله عليه وسلم فَلاَ أَدْرِي بَلَغَتِ الرُّخْصَةُ أَمْ لاَ، ثُمَّ انْكَفَأَ إِلَى كَبْشَيْنِ ـ يَعْنِي فَذَبَحَهُمَا ـ ثُمَّ انْكَفَأَ النَّاسُ إِلَى غُنَيْمَةٍ فَذَبَحُوهَا‏.‏

Narrated By Anas : The Prophet said, "Whoever slaughtered the sacrifice before the 'Id prayer, should repeat it (slaughter another one)." A man said "This is the day on which meat is desired." Then he mentioned the need of his neighbours (for meat) and the Prophet seemed to accept his excuse. The man said, "I have a Jadha'a which is to me better than two sheep." The Prophet allowed him (to slaughter it as a sacrifice). But I do not know whether this permission was general for all Muslims or not. The Prophet then went towards two rams and slaughtered them, and the people went towards their sheep and slaughtered them.