Abu Hurairah, may Allaah be pleased with him, narrates
that Rasulullah, sallallaahu alayhi wa sallam, said:
The excellence and good observance of Islam by
a man is to leave aside what does not concern him.
(Tirmidhi)
Note: The meaning of this hadith is that the perfection and beauty
of a man's belief is reflected in his giving up unprofitable talk and actions.