One who puts a cover on the sacrificial animal

It was narrated that ‘Ali bin Abu Talib said:
“The Messenger of Allah ﷺ commanded me to look after his sacrificial camels, to share out their covers and skins, and not to give the butcher any of it. He said: ‘We will give him (his wages).’”

حَدَّثَنَا مُحَمَّدُ بْنُ الصَّبَّاحِ، أَنْبَأَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ عَبْدِ الْكَرِيمِ، عَنْ مُجَاهِدٍ، عَنِ ابْنِ أَبِي لَيْلَى، عَنْ عَلِيِّ بْنِ أَبِي طَالِبٍ، قَالَ أَمَرَنِي رَسُولُ اللَّهِ ﷺ أَنْ أَقُومَ عَلَى بُدْنِهِ وَأَنْ أَقْسِمَ جِلاَلَهَا وَجُلُودَهَا وَأَنْ لاَ أُعْطِيَ الْجَازِرَ مِنْهَا شَيْئًا وَقَالَ " نَحْنُ نُعْطِيهِ " .