Things that Expiate Sins: Sorrows

The Prophet (SAWA) said, 'Every fatigue, hardship or sorrow that a believer undergoes, as well as worries that distress him, are a means by which Allah deletes his evil deeds.

Imam al-Sadiq (AS) said, 'Verily distress takes away the sins of the Muslim.

Imam al-Rida (AS) said, 'When anyone from among the followers (shiaa) of Ali commit a sin or perpetrates an evil deed in the morning, it is expiated by any distress he may undergo by nightfall. So how can the Pen ever write down his evil deeds?!'