Musannaf Ibn Abi Shayba 21:220

Ubaydah ibn Humayd narrated to us, from Anas, who said: The Prophet, peace and blessings of Allah be upon him, entered upon a sick man who was like a plucked chick due to the exhaustion [of his illness]. The Prophet, peace and blessings of Allah be upon him, said to him: "Were you supplicating to Allah for anything?" He said: "I used to say: 'O Allah, whatever You are going to punish me with in the Hereafter, hasten it for me in this world.'" He said: So the Prophet, peace and blessings of Allah be upon him, said: "Why did you not say: 'O Allah, give us in this world good and in the Hereafter good, and protect us from the punishment of the Fire'?" He said: So he supplicated to Allah, and He healed him.