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."  

عَنِ النَّبِيِّ ﷺ قَالَ إِنَّ اللَّهَ حَرَّمَ عَلَيْكُمْ عُقُوقَ الأُمَّهَاتِ وَمَنْعَ وَهَاتِ وَوَأْدَ الْبَنَاتِ وَكَرِهَ لَكُمْ قِيلَ وَقَالَ وَكَثْرَةَ السُّؤَالِ وَإِضَاعَةَ الْمَالِ  

Messenger of Allah ﷺ said thrice, "Shall I not inform you of the biggest of the great sins?" We said, "Yes, O Messenger of Allah 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.  

قَالَ رَسُولُ اللَّهِ ﷺ 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  

Messenger of Allah ﷺ mentioned the greatest sins or he was asked about the greatest sins. He said, "To join partners in worship with Allah; to kill a soul which Allah has forbidden to kill; and to be undutiful or unkind to one's parents." The Prophet ﷺ added, "Shall I inform you of the biggest of the great sins? That is the forged statement or the false witness." Shuʿba (the sub-narrator) states that most probably the Prophet said, "the false witness."  

ذَكَرَ رَسُولُ اللَّهِ ﷺ الْكَبَائِرَ أَوْ سُئِلَ عَنِ الْكَبَائِرِ فَقَالَ الشِّرْكُ بِاللَّهِ وَقَتْلُ النَّفْسِ وَعُقُوقُ الْوَالِدَيْنِ فَقَالَ أَلاَ أُنَبِّئُكُمْ بِأَكْبَرِ الْكَبَائِرِ قَالَ قَوْلُ الزُّورِ أَوْ قَالَ شَهَادَةُ الزُّورِ قَالَ شُعْبَةُ وَأَكْثَرُ ظَنِّي أَنَّهُ قَالَ شَهَادَةُ الزُّورِ