Sayyiduna Abdullah (may Allah be pleased with him) narrates this statement of the Noble Prophet (peace and blessings be upon him): "A man keeps speaking the truth, and strives to speak the truth, until he is recorded with Allah as a truthful person. And a person keeps telling lies, and strives to tell lies, until he is recorded with Allah as a liar."
Hadith Referenceصحیح ابن حبان / كتاب البر والإحسان / 272
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - «الضعيفة» (6323): ق.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرط الشيخين.