Great tribulations have already past. A group of people were saved from these trials and a group of individuals were destroyed by them, because they followed their desires and gave preference to the life of this world.
The Noble Scholar, Shaykh Rabīʿ ibn Hādī al-Madkhalī:
“The author repeated the ḥadīth, “A man will awake in the morning as a believer and sleep as a disbeliever.” And he said that people will be exposed. Yes! A man is upon the truth and you see him afterwards and he is a disbeliever or a misguided innovator. This is nothing but exposure. He used to claim good, he used to claim knowledge and he used to claim that he was upon the truth; and then unexpectedly he falls into disbelief, either major disbelief or minor disbelief. This is humiliation – and Allāh’s refuge is sought. How many people are exposed and uncovered through Fitnah? These trials and tribulations strip them [bare] and reveal their false claims, and exposes their true realities. This occurs and will continue to occur.”