وَيَقُولُونَ طَاعَةٌ فَإِذَا بَرَزُوا۟ مِنْ عِندِكَ بَيَّتَ طَآئِفَةٌ مِّنْهُمْ غَيْرَ ٱلَّذِى تَقُولُ ۖ وَٱللَّهُ يَكْتُبُ مَا يُبَيِّتُونَ ۖ فَأَعْرِضْ عَنْهُمْ وَتَوَكَّلْ عَلَى ٱللَّهِ ۚ وَكَفَىٰ بِٱللَّهِ وَكِيلًا

And they say, "[We pledge] obedience." But when they leave you, a group of them spend the night determining to do other than what you say. But Allāh records what they plan by night. So leave them alone and rely upon Allāh. And sufficient is Allāh as Disposer of affairs.

An-Nisa 81

وَإِذَا جَآءُوكُمْ قَالُوٓا۟ ءَامَنَّا وَقَد دَّخَلُوا۟ بِٱلْكُفْرِ وَهُمْ قَدْ خَرَجُوا۟ بِهِۦ ۚ وَٱللَّهُ أَعْلَمُ بِمَا كَانُوا۟ يَكْتُمُونَ

And when they come to you, they say, "We believe." But they have entered with disbelief [in their hearts], and they have certainly left with it. And Allāh is most knowing of what they were concealing.

Al-Ma'idah 61

فَلَمَّا نَسُوا۟ مَا ذُكِّرُوا۟ بِهِۦ فَتَحْنَا عَلَيْهِمْ أَبْوَٰبَ كُلِّ شَىْءٍ حَتَّىٰٓ إِذَا فَرِحُوا۟ بِمَآ أُوتُوٓا۟ أَخَذْنَـٰهُم بَغْتَةً فَإِذَا هُم مُّبْلِسُونَ

So when they forgot that by which they had been reminded,1 We opened to them the doors of every [good] thing until, when they rejoiced in that which they were given, We seized them suddenly, and they were [then] in despair.

Al-An'am 44

ٱلْمُنَـٰفِقُونَ وَٱلْمُنَـٰفِقَـٰتُ بَعْضُهُم مِّنۢ بَعْضٍ ۚ يَأْمُرُونَ بِٱلْمُنكَرِ وَيَنْهَوْنَ عَنِ ٱلْمَعْرُوفِ وَيَقْبِضُونَ أَيْدِيَهُمْ ۚ نَسُوا۟ ٱللَّهَ فَنَسِيَهُمْ ۗ إِنَّ ٱلْمُنَـٰفِقِينَ هُمُ ٱلْفَـٰسِقُونَ

The hypocrite men and hypocrite women are of one another. They enjoin what is wrong and forbid what is right and close their hands.1 They have forgotten Allāh, so He has forgotten them [accordingly]. Indeed, the hypocrites - it is they who are the defiantly disobedient.

At-Tawbah 67

أَلَمْ يَعْلَمُوٓا۟ أَنَّ ٱللَّهَ يَعْلَمُ سِرَّهُمْ وَنَجْوَىٰهُمْ وَأَنَّ ٱللَّهَ عَلَّـٰمُ ٱلْغُيُوبِ

Did they not know that Allāh knows their secrets and their private conversations and that Allāh is the Knower of the unseen?

At-Tawbah 78