Is it permissible to delegate the slaughtering of an Udhiyah to the butcher if he slaughters multiple Udhiyahs and then delivers each person their own Udhiyah?

Appointing an agent for the Udhiyah (sacrifice) is permissible, and the agent must be trustworthy in what they are entrusted with. If the principal requests to receive their sacrifice after slaughter, the agent must comply, and their words should be taken as true. However, if the meats of the sacrifices become mixed after slaughter, the sacrifice is valid, and their mixing does not impair their sufficiency. In the case of mixing, one of them must be taken by lot or without it, and both sacrifices will be sufficient for their respective owners.