question #3 Sahih al-Bukhari 7470, Book 97, Hadith 96 : How does one’s attitude towards illness affect their spiritual outcome according to Islamic teachings?

Allah’s Messenger (ﷺ) entered upon a sick bedouin in whom he went to visit and said to him, “Don’t worry,
Tahur (i.e., your illness will be a means of cleansing of your sins), if Allah Will.” The bedouin said,
“Tahur! No, but it is a fever that is burning in the body of an old man and it will make him visit his
grave.” The Prophet (ﷺ) said, “Then it is so.”