Ibn Majah 1622

Bukhari recorded it in "Illness, chapter on the severity of illness," no. 5646, from the hadith of Sufyan and others, with this wording. Muslim recorded it in "Righteousness, Kindness, and Good Manners, chapter on the reward of the believer for what befalls him of illness or grief... etc.," no. 2570, from Ibn Numayr from Musab.