the Messenger of Allah forbade eating the meat of sacrificial animals after three days" (Sahih )  

أَنَّ رَسُولَ اللَّهِ ﷺ نَهَى أَنْ تُؤْكَلَ لُحُومُ الأَضَاحِي بَعْدَ ثَلاَثٍ  

"I saw 'Ali bin Abi Talib - may Allah honor his face on the day of 'Id. He started with the prayer before the Khutbah, and then he prayed with no Adhan and no Iqamah. Then he said: 'I heard the Messenger of Allah forbidding anyone form keeping anything of his sacrificial animal for more than three days." (Sahih )  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَنْهَى أَنْ يُمْسِكَ أَحَدٌ مِنْ نُسُكِهِ شَيْئًا فَوْقَ ثَلاَثَةِ أَيَّامٍ  

"The Messenger of Allah has forbidden you from eating the meat of your sacrificaial animals for more than three day." (Sahih )  

إِنَّ رَسُولَ اللَّهِ ﷺ قَدْ نَهَاكُمْ أَنْ تَأْكُلُوا لُحُومَ نُسُكِكُمْ فَوْقَ ثَلاَثٍ