Surah Takaathur (102: 5-6)
I am having trouble in understanding both of your interpretations. But the crux of the matter is, ‘if you’d truly believed from all the available evidence that there will be such a day of judgement and you would eventually see hell fire with your own eyes on that day and will be held accountable for your deeds, then surely you wouldn’t have been that much heedless to this message’.