“If any of them becomes unfit and you are afraid that it will die, then slaughter it, dip the sandal (tied around its neck) in its blood and place it on its side, but neither you nor any of your companions should eat anything from it.”  

أَنَّ النَّبِيَّ ﷺ كَانَ يَبْعَثُ مَعَهُ بِالْبُدْنِ ثُمَّ يَقُولُ إِذَا عَطِبَ مِنْهَا شَىْءٌ فَخَشِيتَ عَلَيْهِ مَوْتًا فَانْحَرْهَا ثُمَّ اغْمِسْ نَعْلَهَا فِي دَمِهَا ثُمَّ اضْرِبْ صَفْحَتَهَا وَلاَ تَطْعَمْ مِنْهَا أَنْتَ وَلاَ أَحَدٌ مِنْ أَهْلِ رُفْقَتِكَ  

“I said: ‘O Messenger of Allah, what should I do with those sacrificial animals that become unfit?’ He said: ‘Slaughter them, dip its sandal in its blood, then place it on its side, and leave them for the people to eat.’”  

عَمْرٌو فِي حَدِيثِهِ وَكَانَ صَاحِبَ بُدْنِ النَّبِيِّ ﷺ قَالَ قُلْتُ يَا رَسُولَ اللَّهِ كَيْفَ أَصْنَعُ بِمَا عَطِبَ مِنَ الْبُدْنِ قَالَ انْحَرْهُ وَاغْمِسْ نَعْلَهُ فِي دَمِهِ ثُمَّ اضْرِبْ صَفْحَتَهُ وَخَلِّ بَيْنَهُ وَبَيْنَ النَّاسِ فَلْيَأْكُلُوهُ