Quran 47:30 — Muhammad (Muhammad)

If we will, we can expose them for you, so that you can recognize them just by looking at them. However, you can recognize them by the way they talk. GOD is fully aware of all your works.

[47:29] Did those who harbor doubts in their hearts think that GOD will not bring out their evil thoughts?

[47:31] 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.