Quran 47:31

وَلَنَبۡلُوَنَّكُمۡ حَتَّىٰ نَعۡلَمَ ٱلۡمُجَـٰهِدِينَ مِنكُمۡ وَٱلصَّـٰبِرِينَ وَنَبۡلُوَاْ أَخۡبَارَكُمۡ ٣١

We will certainly put you to the test, in order to distinguish those among you who strive, and steadfastly persevere. We must expose your true qualities.