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
وَحَدَّثَنَاهُ أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَعَمْرٌو النَّاقِدُ، وَزُهَيْرُ بْنُ حَرْبٍ، قَالُوا حَدَّثَنَا ابْنُ عُيَيْنَةَ، عَنْ عَبْدِ الْكَرِيمِ الْجَزَرِيِّ، بِهَذَا الإِسْنَادِ مِثْلَهُ .
This hadith has been narrated on the authority of Abd al-Karim al-Jazari with the same chain of transmitters.