Surah Al-Furqan Verse 72

وَالَّذِينَ لَا يَشْهَدُونَ الزُّورَ وَإِذَا مَرُّوا بِاللَّغْوِ مَرُّوا كِرَامًا

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