Ar-Rum 30:60
فَٱصْبِرْ إِنَّ وَعْدَ ٱللَّهِ حَقٌّ ۖ وَلَا يَسْتَخِفَّنَّكَ ٱلَّذِينَ لَا يُوقِنُونَ
Fasbir inna waAAda Allahihaqqun wala yastakhiffannaka allatheena layooqinoon
"So be patient. Indeed, the promise of Allāh is truth. And let them not disquiet you who are not certain [in faith]."
Ar-Rum 30:60, translation by Sahih International
A short reflection
So be patient. Indeed, the promise of Allah is true. Do not let those who have no certainty unsettle you.