Hazrat Abdullah bin Mas’ud (May Allah be pleased with him) reported: The Prophet (peace be upon him) said, "Truth leads to piety and piety leads to Jannah. A man persists in speaking the truth till he is enrolled with Allah as a truthful. Falsehood leads to vice and vice leads to the Fire (Hell), and a person persists on telling lies until he is enrolled as a liar". [Al-Bukhari and Muslim].