‘Abdallah b. ‘Amr reported God’s messenger as saying, “When a servant of God is accustomed to worship Him in a good manner, then becomes ill, the angel who is entrusted with him is told to record for him actions equivalent to those which he did when he was well till God sets him free from his illness or takes him in death.”
Abu Musa reported the Prophet as saying, “No affliction great or small afflicts a man but for a sin, but there are more which God forgives.” Then he recited, “Whatever misfortune befalls you, it is because of what your hands have done; but He forgives much.”(Qur’an, xlii, 30)
Anas reported God’s messenger as saying, “When a Muslim is afflicted with some trouble in his body the angel is told to record for him his good deeds which he was accustomed to do. Then if God cures him He washes and purifies him , and if He takes him in death He forgives him and shows mercy to him.”
‘Ali b. Zaid quoted Umayya as saying that she asked ‘A’isha about the words of God who is great and glorious, "Whether you publish what is in your minds or conceal it, God will call you to account for it,” ( Qur’an, ii, 284) and His words, "If anyone does evil he will be requited for it.”(Qur’an, iv, 123). She replied that no one had asked her about them since she had asked God’s messenger and received the reply, "This is God’s rebuke of His servant, by means of fever or misfortune with which He afflicts him, even such a matter as something he puts in his sleeve and grieves for when he loses it. The result is that the servant comes out of his sins as the pure gold comes out of the crucible."
