Umm Sa'ib or Umm Musayyib. why is it that you are shivering? She said:" It is fever and may it not be blessed by Allah, whereupon he (the Holy Prophet) said: Don't curse fever for it expiates the sin of the children of Adam just as furnace removes the alloy of iron.
Sahih Muslim Book 45, Hadith 68
← Previous Hadith "Whoever does evil will be requited for it", and when this was conveyed to the Muslims they were greatly perturbed. Thereupon Allah's Messenger (ﷺ) said: Be moderate and stand firm in trouble that falls to the lot of a Muslim (as that) is an expiation for him; even stumbling on the path or the pricking of a thorn (are an expiation for him). Muslim said that 'Umar b. Abd al-Rahman Muhaisin was from amongst the people of Mecca.

Sahih Muslim Book 45, Hadith 67 Next Hadith → Ibn Abbas said to me: May I show you a woman of Paradise? I said: Yes. He said: Here is this dark-complexioned woman. She came to Allah's Apostle (ﷺ) and said: I am suffering from falling sickness and I become naked; supplicate Allah for me, whereupon he (the Holy Prophet) said: Show endurance as you can do and there would be Paradise for you and, if you desire, I supplicate Allah that He may cure you. She said: I am prepared to show endurance (but the unbearable trouble is) that I become naked, so supplicate Allah that He should not let me become naked, so he supplicated for her.

Sahih Muslim Book 45, Hadith 69