To be undutiful to parents is one of the greatest sins
حَدَّثَنَا سَعْدُ بْنُ حَفْصٍ، حَدَّثَنَا شَيْبَانُ، عَنْ مَنْصُورٍ، عَنِ الْمُسَيَّبِ، عَنْ وَرَّادٍ، عَنِ الْمُغِيرَةِ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " إِنَّ اللَّهَ حَرَّمَ عَلَيْكُمْ عُقُوقَ الأُمَّهَاتِ، وَمَنْعَ وَهَاتِ، وَوَأْدَ الْبَنَاتِ، وَكَرِهَ لَكُمْ قِيلَ وَقَالَ، وَكَثْرَةَ السُّؤَالِ، وَإِضَاعَةَ الْمَالِ ".
Narrated Al-Mughira: The Prophet (ﷺ) said, "Allah has forbidden you ( 1 ) to be undutiful to your mothers (2) to withhold (what you should give) or (3) demand (what you do not deserve), and (4) to bury your daughters alive. And Allah has disliked that (A) you talk too much about others ( B), ask too many questions (in religion), or (C) waste your property."