Sayyiduna Ali (may Allah be pleased with him) says: The Messenger of Allah (peace and blessings be upon him) ordered me to stand over (and supervise) a sacrificial camel and to distribute its hides and coverings, and he ordered me not to give the butcher anything from it, and he said: "We will give him (his wage) from our own."
(b) In the narration of Abu Khaythamah: (he ordered me) to give its meat, hides and coverings in charity, and not to give the butcher's wage from it. He said: "We will give it to him from our own."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19232