Is it permissible to accept financial assistance from a relative whose money is mixed (halal and haram) for marriage expenses and the wedding feast (walima)? What is the ruling on inviting a non-Muslim relative to the walima based on the parents' request? Should the walima be offered before the sacrifice (udhiyah) or vice versa if circumstances only permit one sheep?

It is forbidden to accept financial aid if it originates from ill-gotten gains, except for the poor and the needy, unless a specific owner's right is attached to it. It is disliked or permissible if it comes from mixed funds. There is no objection to inviting a non-Muslim relative to a wedding feast if he is not an enemy combatant, especially if his invitation involves calling him to Allah. It is permissible to sacrifice a sheep for a wedding feast.