Dalil
العربية

Quran Al-Furqan 25:72

وَٱلَّذِينَ لَا يَشۡهَدُونَ ٱلزُّورَ وَإِذَا مَرُّواْ بِٱللَّغۡوِ مَرُّواْ كِرَامٗا

Translation

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