“I heard abu al-Hassan (a.s.), say, ‘Among banu Israel there was a man who did not have a son. When he became the father of a son, he was told that his son would die on the night of his marriage. The boy waited until the night of his marriage, when he saw a frail, old man. He felt sympathy for him and invited him for food. The old man said to him, “You revived me, and I pray to Allah to give you life.” He (the father) was told in his dream to ask his son about what he had done. He asked his son, and his son told him about his treatment of the old man. Someone in his dream, again, told him that Allah has protected your son from dying because of his good treatment of the old man.’”