Once, Sayyiduna Abbas (may Allah be pleased with him) came to the service of the Prophet (peace and blessings be upon him) and said: "O Messenger of Allah! I am your uncle, I have become old and my time of death is near. Teach me a supplication through which Allah may grant me benefit." The Prophet (peace and blessings be upon him) said: "O Abbas! You are indeed my uncle, but I cannot be of any help to you in the matter of Allah. However, you should keep asking your Lord for pardon and well-being in this world and the Hereafter." The Prophet (peace and blessings be upon him) said this three times. Then, Sayyiduna Abbas (may Allah be pleased with him) came again after a year, and even then the Prophet (peace and blessings be upon him) taught him the same supplication.