Giving the meat, skin and blankets of the Hadi in charity; the butcher should not be given any of it; It is permissible to delegate someone else to offer the sacrifice Sahih Muslim 1317 b

Arabic hadith text
وَحَدَّثَنَاهُ أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَعَمْرٌو النَّاقِدُ، وَزُهَيْرُ بْنُ حَرْبٍ، قَالُوا حَدَّثَنَا ابْنُ عُيَيْنَةَ، عَنْ عَبْدِ الْكَرِيمِ الْجَزَرِيِّ، بِهَذَا الإِسْنَادِ مِثْلَهُ ‏.‏
Translation

This hadith has been narrated on the authority of Abd al-Karim al-Jazari with the same chain of transmitters.