(Ashoora) 42 : 37
وَالَّذِينَ يَجْتَنِبُونَ كَبَائِرَ الْإِثْمِ وَالْفَوَاحِشَ وَإِذَا مَا غَضِبُوا هُمْ يَغْفِرُونَ

And those who are abstaining from the heinous sins and the shameful deeds; and when they become angry, they will forgive.

From the heedful who keeps Allah in the heart with Adhikr (the Truth), no heinous or shameful deed happens. Such believer who is the vicegerent of Believer Allah, if happens to face any deed or word from the ignorant people angering him, he without becoming angry will behave in a forgiving manner. See explanation 4: 31; 9: 80 and 29: 45.