Al-Adab al-Mufrad 728

Anas said that the Prophet (ﷺ) visited a sick man who had withered from sickness to such an extent that he could be compared to a bridling whose feathers had been plucked out. The Prophet (ﷺ) said to him, "Make supplication for health." So, he began to supplicate Allah, " O Allah whatever punishment you intend to give me in the hereafter, give it to me here, in this life". The Prophet (ﷺ) said, "Subhan Allah! You are not able to bear that. Why did you not make this supplication?: O Allah, grant us what is good in this world and what is good in the hereafter, and save us from the chastisement of the fire." Then the Prophet (ﷺ) made a supplication for him and Allah, the Mighty, the Gracious, gave him cure from sickness.