Good Manners and Form (Al-Adab)
78/6. Chapter:
To be undutiful to parents is one of the greatest sins
Sahih Bukhari
حَدَّثَنِي إِسْحَاقُ، حَدَّثَنَا خَالِدٌ الْوَاسِطِيُّ، عَنِ الْجُرَيْرِيِّ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي بَكْرَةَ، عَنْ أَبِيهِ ـ رضى الله عنه ـ قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " أَلاَ أُنَبِّئُكُمْ بِأَكْبَرِ الْكَبَائِرِ ". قُلْنَا بَلَى يَا رَسُولَ اللَّهِ. قَالَ " الإِشْرَاكُ بِاللَّهِ، وَعُقُوقُ الْوَالِدَيْنِ ". وَكَانَ مُتَّكِئًا فَجَلَسَ فَقَالَ " أَلاَ وَقَوْلُ الزُّورِ وَشَهَادَةُ الزُّورِ، أَلاَ وَقَوْلُ الزُّورِ وَشَهَادَةُ الزُّورِ ". فَمَا زَالَ يَقُولُهَا حَتَّى قُلْتُ لاَ يَسْكُتُ.
Narrated Abu Bakra: Allah's Messenger (ﷺ) said thrice, "Shall I not inform you of the biggest of the great sins?" We said, "Yes, O Allah's Messenger (ﷺ)" He said, "To join partners in worship with Allah: to be undutiful to one's parents." The Prophet (ﷺ) sat up after he had been reclining and added, "And I warn you against giving forged statement and a false witness; I warn you against giving a forged statement and a false witness." The Prophet kept on saying that warning till we thought that he would not stop.
Reference : Sahih al-Bukhari 5976In-book reference : Book 78, Hadith 7USC-MSA web (English) reference : Vol. 8, Book 73, Hadith 7