`Abdullah bin `Amr bin Al-`as (May Allah be pleased with them) reported: Messenger of Allah (PBUH) said, “It is one of the gravest sins to abuse one’s parents.” It was asked (by the people): “O Messenger of Allah, can a man abuse his own parents?” Messenger of Allah (PBUH) said, “He abuses the father of somebody who, in return, abuses the former’s father; he then abuses the mother of somebody who, in return, abuses his mother”. [Al-Bukhari and Muslim].

Another narration is: Messenger of Allah (PBUH) said, “One of the major sins is to curse one’s parents”. It was submitted: “O Messenger of Allah! How can a man curse his own parents?” He (PBUH) said, “When someone curses the parents of another man who in return abuses the former’s father; and when someone abuses the mother of another man who in return abuses his mother.”

Commentary: We learn from this Hadith that one should not abuse anyone’s parents, because in the event, he is paid in the same coin, he will be responsible for disgracing his own parents.