Hadith on Signs of Hypocrite

From Abû Hurayrah who said that Allâh's Messenger said:

"Three things are the sign of the hypocrite: 
when he speaks he tells lies, 
when he promises he breaks it and 
when he is trusted he proves to be dishonest."

So he is truthful and honest in his speech, faithful to his promise, trustworthy in carrying out that which he has been entrusted with. He does not deceive or defraud, he does not tell lies and is not guilty of hypocrisy. So truthfulness and honesty is one of the chief good qualities, whereas falsehood is the head of corruption and evil. So his honesty keeps him far away from evil and foul deeds and sickness of the heart. Therefore whatever action he does, he does it for Allâh, the One free and far removed from all defects, not to attain some worldly position, fame or repute.

Reported by al-Bukharee (Eng. Trans. 1/31/no.32) and Muslim (Eng. Trans. 1/40/no.112)