Is it permissible to give the meat of an animal vowed as an offering to one's needy nephew to help him with his wedding, with the intention of charity?

It is permissible to give the meat of a vowed sacrifice to a needy nephew to help him organize his wedding party without extravagance, because one who is in need of marriage expenses is considered eligible for zakat (definition). An absolute vow (whose beneficiary has not been specified) is to be given to those eligible for zakat, such as the poor, the needy, and the like. This includes six categories: the poor, the needy, those in bondage, those in debt, those in the cause of Allah, and the wayfarer.