NARRATE ABU HURAIRA(MAY ALLAH BE PLEASED WITH HIM):THE PROPHET(SAW) SAID.the sign of hypocrite are three(a)whenever he speakes,he tells a lie (b)whenever he promises,he always breaks it(his promise).(c) if you trust him, he proves to be dishonest.(if you keep something as a trust with him,he will not return it),,(sahih al bukhari)