'A'isha reported that the Prophet, may Allah bless him and grant him peace, said, "The greatest of criminals is the poet who satirises the entire tribe and a man who disclaims his father."  

عَنِ النَّبِيِّ ﷺ قَالَ إِنَّ أَعْظَمَ النَّاسِ جُرْمًا إِنْسَانٌ شَاعِرٌ يَهْجُو الْقَبِيلَةَ مِنْ أَسْرِهَا وَرَجُلٌ انْتَفَى مِنْ أَبِيهِ