Tafsir of Al-Muddathir 74:28

And what will make you know (exactly) what Saqar is? This is to give fright and emphasis to its matter. Then Allah explains this by His saying,

ﻻ تبقي وﻻ تذر

It spares not, nor does it leave (anything)! meaning, it eats their flesh, veins, nerves and their skins. Then their organs will be changed into something else. They will remain in this (form), not living or dying. This was stated by Ibn Buraydah, Abu Sinan and others. Concerning Allah's statement,

لواحة للبشر