Sheikhul-Islaam
Ibn Taymiyyah رحمه الله stated:
'When you see the servant talking about
the people who have harmed him whilst he (the servant) doesn’t
return the blame back to himself and seek forgiveness (from Allaah), then know
that his calamity is a true calamity. However when he repents, seeks
forgiveness and says, “this is due to my sins,” then this matter (of being
harmed by the people) will become a blessing for him.'
{Jaam’i
al-Masaa-il, 1/169}