Surah Al-Furqan, Verse 72

وَٱلَّذِينَ لَا يَشۡهَدُونَ ٱلزُّورَ وَإِذَا مَرُّواْ بِٱللَّغۡوِ مَرُّواْ كِرَامٗا٧٢

wa-alladhīna lā yashhadūna l-zūra wa-idhā marrū bil-laghwi marrū kirāman

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