Hurting a Believer
The Holy Prophet [s.a] said: ‘He who grieves a true Muslim cannot then compensate for it by offering him the entire world because it is not sufficient compensation (unless he repents and appeases the said person).’
Source: Bihar-ul-Anwar, vol. 75, p. 150
Taken from: al-shia.org
Other links:
The most perfect of the believers in faith
Keep yourselves far from envy
Choosing Friends
Spend more time in learning
Best moral virtues
The merit of scholars
Say what is true
Wise and fool