(Second chain) The Messenger of Allah, peace and blessings be upon him, said: Indeed, disobedience to parents is the greatest of the major sins. Someone asked: What is meant by disobedience to parents? He, peace and blessings be upon him, said: A man abuses another man, and in retaliation, the latter abuses his father; and he insults his mother, and in response, the latter insults his mother.