Forfeiting one's share in the estate
Q:
1. If persons' A, B and C were going to inherit and person C decided that he didn't want his share, does his share go back into the "pot" and distributed accordingly between persons A and B or can person C instruct the executor as to how they want to receive that share?
2. When distributing the deceased's wasiyat for missed fasts, salaah, etc., to who can this money be given to? E.g Musjid, madrasah, Muslim organisations, poor Muslims, etc. What would be the best way to distribute it.