Al-Mujadila 58:11

أَلَمْ تَرَ إِلَى الَّذِينَ نُهُوا عَنِ النَّجْوَىٰ ثُمَّ يَعُودُونَ لِمَا نُهُوا عَنْهُ وَيَتَنَاجَوْنَ بِالْإِثْمِ وَالْعُدْوَانِ وَمَعْصِيَتِ الرَّسُولِ وَإِذَا جَاءُوكَ حَيَّوْكَ بِمَا لَمْ يُحَيِّكَ بِهِ اللَّهُ وَيَقُولُونَ فِي أَنفُسِهِمْ لَوْلَا يُعَذِّبُنَا اللَّهُ بِمَا نَقُولُ ۚ حَسْبُهُمْ جَهَنَّمُ يَصْلَوْنَهَا ۖ فَبِئْسَ الْمَصِيرُ

Have you not considered those who were forbidden from private conversation, then they return to that which they were forbidden and converse among themselves about sin and aggression and disobedience to the Messenger? And when they come to you, they greet you with that [word] by which Allah does not greet you and say among themselves, "Why does Allah not punish us for what we say?" Sufficient for them is Hell, which they will [enter to] burn, and wretched is the destination.

يَا أَيُّهَا الَّذِينَ آمَنُوا إِذَا تَنَاجَيْتُمْ فَلَا تَتَنَاجَوْا بِالْإِثْمِ وَالْعُدْوَانِ وَمَعْصِيَتِ الرَّسُولِ وَتَنَاجَوْا بِالْبِرِّ وَالتَّقْوَىٰ ۖ وَاتَّقُوا اللَّهَ الَّذِي إِلَيْهِ تُحْشَرُونَ

O you who have believed, when you converse privately, do not converse about sin and aggression and disobedience to the Messenger but converse about righteousness and piety. And fear Allah, to whom you will be gathered.

إِنَّمَا النَّجْوَىٰ مِنَ الشَّيْطَانِ لِيَحْزُنَ الَّذِينَ آمَنُوا وَلَيْسَ بِضَارِّهِمْ شَيْئًا إِلَّا بِإِذْنِ اللَّهِ ۚ وَعَلَى اللَّهِ فَلْيَتَوَكَّلِ الْمُؤْمِنُونَ

Private conversation is only from Satan that he may grieve those who have believed, but he will not harm them at all except by permission of Allah. And upon Allah let the believers rely.

يَا أَيُّهَا الَّذِينَ آمَنُوا إِذَا نَاجَيْتُمُ الرَّسُولَ فَقَدِّمُوا بَيْنَ يَدَيْ نَجْوَاكُمْ صَدَقَةً ۚ ذَٰلِكَ خَيْرٌ لَّكُمْ وَأَطْهَرُ ۚ فَإِن لَّمْ تَجِدُوا فَإِنَّ اللَّهَ غَفُورٌ رَّحِيمٌ

O you who have believed, when you [wish to] privately consult the Messenger, present before your consultation a charity. That is better for you and purer. But if you find not [the means] - then indeed, Allah is Forgiving and Merciful.

أَأَشْفَقْتُمْ أَن تُقَدِّمُوا بَيْنَ يَدَيْ نَجْوَاكُمْ صَدَقَاتٍ ۚ فَإِذْ لَمْ تَفْعَلُوا وَتَابَ اللَّهُ عَلَيْكُمْ فَأَقِيمُوا الصَّلَاةَ وَآتُوا الزَّكَاةَ وَأَطِيعُوا اللَّهَ وَرَسُولَهُ ۚ وَاللَّهُ خَبِيرٌ بِمَا تَعْمَلُونَ

Have you feared to present before your consultation charities? Then when you do not and Allah has forgiven you, then [at least] establish prayer and give zakah and obey Allah and His Messenger. And Allah is Acquainted with what you do.

أَلَمْ تَرَ إِلَى الَّذِينَ تَوَلَّوْا قَوْمًا غَضِبَ اللَّهُ عَلَيْهِم مَّا هُم مِّنكُمْ وَلَا مِنْهُمْ وَيَحْلِفُونَ عَلَى الْكَذِبِ وَهُمْ يَعْلَمُونَ

Have you not considered those who make allies of a people with whom Allah has become angry? They are neither of you nor of them, and they swear to untruth while they know [they are lying].