(Ashoora) 42 : 43
وَلَمَنْ صَبَرَ وَغَفَرَ إِنَّ ذَٰلِكَ لَمِنْ عَزْمِ الْأُمُورِ
And surely anyone who shows patience and forgiveness—indeed, it is from the confirmed determination of affairs.
That means, by seeing the Hereafter, if anyone shows patience and forgives, it is from the confirmed determination of affairs. See explanation 9: 51; 31: 16-17 and 32: 24.