Muwatta Malik, Book 23, Hadith 7 (USC-MSA)

Yahya related to me from Malik from Abdullah ibn Abi Bakr that Abdullah ibn Waqid said, "The Messengerof Allah, may Allah bless him and grant him peace, forbade eating the meat from sacrificial animals after three days." Abdullah ibn Abi Bakr said, "I mentioned that to Amra bint Abd ar-Rahman, and she affirmed that he had spoken the truth as she had heard A'isha, the wife of the Prophet, may Allah bless him and grant him peace, say, 'Some people from the desert came at the time of the sacrifice in the time of the Messenger of Allah, may Allah bless him and grant him peace, so the Messenger of Allah, may Allah bless him and grant him peace, said, 'Store up for three days, and give what is left over as sadaqa.' " She said that afterwards some one said to the Messenger of Allah, may Allah bless him and grant him peace, that people had been accustomed to make use of their sacrificial animals, melting the fat and curing the skins. The Messenger of Allah, may Allah bless him and grant him peace, said, "What about that?" They said, "You have forbidden the meat of sacrificial animals after three days." The Messenger of Allah, may Allah bless him and grant him peace, said, "I only forbade you for the sake of the people who were coming to you. Eat, give sadaqa and store up." By these people, he meant the poor people who were coming to Madina.

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ عَبْدِ اللَّهِ بْنِ أَبِي بَكْرٍ، عَنْ عَبْدِ اللَّهِ بْنِ وَاقِدٍ، أَنَّهُ قَالَ نَهَى رَسُولُ اللَّهِ صلى الله عليه وسلم عَنْ أَكْلِ لُحُومِ الضَّحَايَا بَعْدَ ثَلاَثَةِ أَيَّامٍ ‏.‏ قَالَ عَبْدُ اللَّهِ بْنُ أَبِي بَكْرٍ فَذَكَرْتُ ذَلِكَ لِعَمْرَةَ بِنْتِ عَبْدِ الرَّحْمَنِ فَقَالَتْ صَدَقَ سَمِعْتُ عَائِشَةَ زَوْجَ النَّبِيِّ صلى الله عليه وسلم تَقُولُ دَفَّ نَاسٌ مِنْ أَهْلِ الْبَادِيَةِ حَضْرَةَ الأَضْحَى فِي زَمَانِ رَسُولِ اللَّهِ صلى الله عليه وسلم فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ ادَّخِرُوا لِثَلاَثٍ وَتَصَدَّقُوا بِمَا بَقِيَ ‏"‏ ‏.‏ قَالَتْ فَلَمَّا كَانَ بَعْدَ ذَلِكَ قِيلَ لِرَسُولِ اللَّهِ صلى الله عليه وسلم لَقَدْ كَانَ النَّاسُ يَنْتَفِعُونَ بِضَحَايَاهُمْ وَيَجْمِلُونَ مِنْهَا الْوَدَكَ وَيَتَّخِذُونَ مِنْهَا الأَسْقِيَةَ فَقَالَ رَسُولُ اللَّهِ ‏"‏ وَمَا ذَلِكَ ‏"‏ ‏.‏ أَوْ كَمَا قَالَ ‏.‏ قَالُوا نَهَيْتَ عَنْ لُحُومِ الضَّحَايَا بَعْدَ ثَلاَثٍ ‏.‏ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ إِنَّمَا نَهَيْتُكُمْ مِنْ أَجْلِ الدَّافَّةِ الَّتِي دَفَّتْ عَلَيْكُمْ فَكُلُوا وَتَصَدَّقُوا وَادَّخِرُوا ‏"‏ ‏.‏

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also referenced under: Book 23, Hadith 1037 (In-Book)