The Prophet ﷺ said, "No one enters Paradise without being shown the place he would have occupied in the Fire had he done evil, so that he may increase in gratitude. And no one enters the Fire without being shown the place he would have occupied in Paradise had he done good, so that it may be a source of regret for him."
قال النبي ﷺ: لا يدخل أحد الجنة إلا أري مقعده من النار لو أساء، ليزداد شكرا، ولا يدخل النار أحد إلا أري مقعده من الجنة لو أحسن، ليكون عليه حسرة.