Yahya related to me from Malik from Yahya ibn Said that deathcame to a man in the time of the Messenger of Allah, may Allah blesshim and grant him peace. A man said, "He was fortunate," as he haddied without being tried by illness. The Messenger of Allah, may Allahbless him and grant him peace, said, "Alas for you, what will let youknow that if Allah had tried him with illness, He would have wiped outhis wrong actions."
USC-MSA web (English) reference: Book 50, Hadith 8
Arabic reference: Book 50, Hadith 1721