Abdullah bin Mas'ud (May Allah be pleased with him) reported:
The Prophet (ﷺ) 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".'[Agreed upon].
Arabic/English book reference: Book 1, Hadith 54