Hazrat Muawiyah bin Qurrah (may Allah be pleased with him) narrates that Hazrat Abu Darda (may Allah be pleased with him) used to supplicate as follows: O Allah! I ask You for everlasting faith, beneficial knowledge, and the straight path. Hazrat Muawiyah (may Allah have mercy on him) says: Thus, we understood! Indeed, there is such faith that does not remain forever, and there is such knowledge that does not benefit, and there is such a path that is not straight.