Surah Al-Furqan 25:72

وَٱلَّذِينَ لَا يَشْهَدُونَ ٱلزُّورَ وَإِذَا مَرُّوا۟ بِٱللَّغْوِ مَرُّوا۟ كِرَامًا

And [they are] those who do not testify to falsehood, and when they pass near ill speech, they pass by with dignity.

Translation: Saheeh International

Tafsir

and those who do not give false testimony that is testimony containing mendacity and falsehood and when they come across senseless talk in the way of vile speech and otherwise they pass by with dignity shunning such vanity;

Excerpt from Tafsir al-Jalalayn, commentary on 25:72, via Quran.com. The reader has the full commentary and 9 more tafsirs.