And when they hear Al-Laghw (dirty, flase, evil vain talk) they withdraw.
(Quran, 28:55)

And those who turn away from Al-Laghw (dirty, false, evil vain talk, falsehood, and all that Allah has forbidden).
(Quran, 23:3)

Verily, the hearing, and the sight, and the heart of each of those ones will be questioned (by Allah)
(Quran, 17:36)

Abud-Darda (radiyallahu anhu) said: The Prophet (salallahu ‘alahi wasallam) said, “He who defends the honour of his (Muslim) brother, Allah will secure his face against the fire on the Day of Resurrection.”
(Tirmidhi)