Is it permissible for a group of brothers to share in a single Udhiyah (sacrificial animal), and is it permissible to authorize the butcher to slaughter the Udhiyah and then pay its value?

It is permissible for the sacrificer to include others in the reward of the sacrifice before slaughtering it, provided they are relatives living with him. This absolves them from the obligation of making their own sacrifice. It is not permissible to share in the price of a sheep, but it is permissible for seven people or fewer to share in one cow or camel, provided that the sacrificer's share is no less than one-seventh of it. It is permissible to appoint a butcher or someone else to slaughter the sacrifice if they are trustworthy, but their wages must not be any part of the sacrifice.