Praise be to Allaah.
Yes, everything of
sickness, difficulty, worry or distress that befalls a person, even the
prick of a thorn, is an expiation for his sins. Then if he bears it
patiently and seeks reward for that with Allaah, as well as the expiation of
his sins he will be rewarded for the patience with which he bears the
calamity that has befallen him. It makes no difference whether that is at
the time of death or before. Calamities are expiation of sin for the
believer. The proof of that is the verse (interpretation of the meaning):
“And whatever of misfortune befalls
you, it is because of what your hands have earned. And He pardons much”
[al-Shoora 42:30]
Since that is because of what our hands have earned, this
indicates that it is an expiation for the things we have done. The Prophet
SAWS (peace and blessings of Allaah be upon him) said that no worry,
distress or hurt befalls the Muslim, not even a thorn that pricks him, but
Allaah will expiate his sins thereby.
Shaykh Ibn ‘Uthaymeen, in al-Fataawa al-Jaami’ah li’l-Mar’ah al-Muslimah, part 3, p. 1138