Sayyiduna Muawiyah (may Allah be pleased with him) narrates: I heard the Prophet (peace and blessings of Allah be upon him) say: "If you keep spying on people's hidden matters, you will corrupt them or bring them close to corruption." The narrator states: Sayyiduna Abu Darda (may Allah be pleased with him) said that Sayyiduna Muawiyah (may Allah be pleased with him) heard this statement from the Prophet (peace and blessings of Allah be upon him), and through it Allah Almighty benefited him.