Surah Ash-Shuraa 42:43

وَلَمَن صَبَرَ وَغَفَرَ إِنَّ ذَٰلِكَ لَمِنْ عَزْمِ ٱلْأُمُورِ

And whoever is patient and forgives - indeed, that is of the matters [worthy] of resolve.

Translation: Saheeh International

Tafsir

But verily he who is patient and defend himself by retaliating and forgives excuses the wrong done to him — surely that patience and excusing is true constancy in such affairs that is to say it is one of those courses of action for which one must have firm resolve meaning those which are required of the believer by …

Excerpt from Tafsir al-Jalalayn, commentary on 42:43, via Quran.com. The reader has the full commentary and 9 more tafsirs.