The Meccan Revelations: Page 424 from Volume One

The Day of Judgment, for it is a description of them, so the reward will be this world and the hereafter, and this is also evident in what He legislated regarding the establishment of punishments and the emergence of corruption on land and sea because of what the hands of the people have earned, so that they may taste some of what they have done so that they may return, and this is the essence of the reward. The day of this world is also the day of recompense, and God is King. On the Day of Judgment, the one who knows will see that the expiations are valid This world, and that a person in this world is not safe from something that narrows his chest and hurts him emotionally and mentally, even the bite of a flea or a stumble. Pains are limited and temporary, and the mercy of God Almighty is not temporary, for it extends to all things. Some of them are attained and controlled through gratitude, which is the basis of taking them with gratitude, and some of them are taken from gratitude.