فَاصْبِرْ إِنَّ وَعْدَ اللَّهِ حَقٌّ وَلَا يَسْتَخِفَّنَّكَ الَّذِينَ لَا يُوقِنُونَ
[30:60]
Therefore be patient; surely the promise of Allah is true and let not those who have no certainty hold you in light estimation.
So patiently persevere: for verily the promise of Allah is true: nor let those shake thy firmness, who have (themselves) no certainty of faith.
So have patience (O Muhammad)! Allah's promise is the very truth, and let not those who have no certainty make thee impatient.