On the authority of Abu Dharr who said: ‘I said: O
Messenger of Allaah advise me.’ The Messenger
-sallAllaahu alayhi wa sallam- said: ‘If you do a bad deed then follow
it up with a good one and it wipes it
out.’ Abu Dharr continued: I said: ‘O Messenger of Allaah is La ilaha ‘illa
Allaah from the good deeds?’ He answered: ‘It is the best of righteous deeds.’
Narrated by Ahmad and Al-Albani graded it Hasan in
‘Saheehah’ (1373)
Translated by Abbas Abu Yahya
Taken from: Followingthesunnah.com