Translation of the verse 37 from Surah Ash-Shura : Number of verses 53 - - page 487 - Part 25.
And those who avoid the greater sins, and Al-Fawahish (illegal sexual intercourse, etc.), and when they are angry, they forgive
And those who avoid the major sins and immoralities, and when they are angry, they forgive,
(42:37) who eschew grave sins and shameful deeds, *58 and whenever they are angry, forgive; *59
*58) For explanation, sec An-Nisa: 31. AI-An'am: 151, An-Naml: 90, AnNajm: 32 and the E.N.'s.
*59) That is, they are not wrathful and crazy but arc temperate and coolminded: they are not revengeful but forbearing and forgiving by nature. If ever they feel angry at something they control their rage. This characteristic is the best of man's qualities. which has been highly commended in the Qur'an (AI-'Imran: 134) and regarded as a major factor of the Holy Prophet's success (AI-'Imran: 159) According to Hadrat 'A'ishah, 'The Holy Messenger of Allah never avenged himself on anybody, however, when a thing enjoined to be held sacred by Allah was desecrated, he would award the punishment." (Bukhari, Muslim)