Allah will expose the faults of those who backbite about the faults of their fellow Muslims
The Prophet ﷺ said: "O people who have believed by their tongue, and Īmān (faith) has not ˹yet˺ entered their hearts, do not back-bite ˹your fellow˺ Muslims, and do not look for their faults. For if anyone hunts for their faults, Allah will ˹expose˺ his fault, and if Allah ˹exposes˺ the fault of anyone, He disgraces him in his house."
قَالَ رَسُولُ اللَّهِ ﷺ: «يَا مَعْشَرَ مَنْ آمَنَ بِلِسَانِهِ وَلَمْ يَدْخُلِ الإِيمَانُ قَلْبَهُ لاَ تَغْتَابُوا الْمُسْلِمِينَ وَلاَ تَتَّبِعُوا عَوْرَاتِهِمْ فَإِنَّهُ مَنِ اتَّبَعَ عَوْرَاتِهِمْ يَتَّبِعِ اللَّهُ عَوْرَتَهُ وَمَنْ يَتَّبِعِ اللَّهُ عَوْرَتَهُ يَفْضَحْهُ فِي بَيْتِهِ۔»