عَن جُنْدُب بن عبد الله قَالَ: شَهِدْتُ الْأَضْحَى يَوْمَ النَّحْرِ مَعَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَلَمْ يَعْدُ أَن صلى وَفرغ من صلَاته وَسلم فَإِذا هُوَ يرى لَحْمَ أَضَاحِيٍّ قَدْ ذُبِحَتْ قَبْلَ أَنْ يَفْرَغَ مِنْ صَلَاتِهِ فَقَالَ: «مَنْ كَانَ ذَبَحَ قَبْلَ أَنْ يُصَلِّيَ أَوْ نُصَلِّيَ فَلْيَذْبَحْ مَكَانَهَا أُخْرَى» . وَفِي رِوَايَةٍ: قَالَ صَلَّى النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَوْمَ النَّحْرِ ثُمَّ خَطَبَ ثُمَّ ذَبَحَ وَقَالَ: «مَنْ كَانَ ذَبَحَ قَبْلَ أَنْ يُصَلِّيَ فَلْيَذْبَحْ أُخْرَى مَكَانَهَا وَمَنْ لَمْ يَذْبَحْ فليذبح باسم الله»

Zaid b. Arqam said the companions of God’s Messenger asked him the significance of these sacrifices and he replied, “It is a custom which has come down from your father Abraham." They asked what reward they would receive for them and he replied, “For every hair you will receive a blessing." They asked about wool, and he replied, “For every strand of wool you will receive a blessing." Ahmad and Ibn Majah transmitted it.