Surah An-Nisa 4:148

۞ لَّا يُحِبُّ ٱللَّهُ ٱلْجَهْرَ بِٱلسُّوٓءِ مِنَ ٱلْقَوْلِ إِلَّا مَن ظُلِمَ ۚ وَكَانَ ٱللَّهُ سَمِيعًا عَلِيمًا

Allāh does not like the public mention of evil except by one who has been wronged. And ever is Allāh Hearing and Knowing.

Translation: Saheeh International

Tafsir

God does not like the utterance of evil words out loud by any person that is to say He will punish him for it unless a person has been wronged in which case He would not punish him for uttering it out loud when he is informing others of the wrong done to him by the wrong-doer or summoning them against him. …

Excerpt from Tafsir al-Jalalayn, commentary on 4:148, via Quran.com. The reader has the full commentary and 9 more tafsirs.