I asked Abu Abdullah (as) about a man who was killed and had both young and adult children. I asked: "What if his adult children forgave (the murderer)?" Imam (as) replied: "The murderer will not be killed, and the forgiveness of the adults is valid concerning their shares. When the younger children reach adulthood, they have the right to claim their share of the blood money (diyyah)." It has also been narrated: "If one of the heirs forgives regarding the blood, the retribution (qisas) is nullified."