Abdul Aziz (may Allah have mercy on him) says that once we went to Hazrat Anas (may Allah be pleased with him) along with Thabit. Thabit mentioned his illness. He (Anas) said, "Shall I not tell you the incantation which the Prophet (peace be upon him) used to recite?" He said, "Why not." He (Anas) said, "Say: O Allah! Lord of the people! Remover of difficulties! Grant healing, for You are the only Healer. There is no healer except You. Grant such a healing that leaves no trace of illness."