What is better for spending a sum of money intended as charity on behalf of a deceased father, after his son saw him in a dream asking for money, knowing that there are no needy relatives?

Giving charity on behalf of the deceased and supplicating for them are among the best deeds, and their reward reaches them by scholarly consensus. It is preferable to seek out the poor and needy who are not relatives, if there are no needy among them, or to give it to charitable organizations that sponsor the needy everywhere, especially those afflicted by disaster and the displaced. It is imperative to ensure whether the deceased owed any debts or had obligations to others, in order to repay them.