Musnad Ahmad Hadith 6641

It is narrated from Ibn Amr (may Allah be pleased with him) that a man came to the service of the Noble Prophet (ﷺ) and said, "O Messenger of Allah! What is the deed of Paradise?" The Noble Prophet (ﷺ) said: "Speaking the truth. When a servant speaks the truth, he does good deeds, and when he does good deeds, he attains faith, and when he attains faith, he will enter Paradise." Then he asked, "O Messenger of Allah! What is the deed of Hell?" The Noble Prophet (ﷺ) said: "Lying. When a servant lies, he commits sin, and when he commits sin, he commits disbelief, and when he commits disbelief, he will enter Hell."