﴿ فَٱصْبِرْ إِنَّ وَعْدَ ٱللَّهِ حَقٌّۭ ۚ فَإِمَّا نُرِيَنَّكَ بَعْضَ ٱلَّذِى نَعِدُهُمْ أَوْ نَتَوَفَّيَنَّكَ فَإِلَيْنَا يُرْجَعُونَ ﴾

“HENCE, remain thou patient in adversity - for, verily, God’s promise always comes true. And whether We show thee [in this world] something of what We hold in store for those [deniers of the truth], or whether We cause thee to die [ere that retribution takes place - know that, in the end], it is unto Us that they will be brought back.”

Please check ayah 40:78 for complete tafsir.