Indeed, the Fire is of the greatest [afflictions] (74:35)

Almuntakhab Fi Tafsir Alquran Alkarim

That Saqar is one of many pits of Hell that is. ghastly and immense

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(74:35) surely (Hell) is one of the greatest Signs, *28

Indeed, the Fire is of the greatest [afflictions] meaning

*28) That is, "Just as the moon and the night and the day are the great signs of the powers of Allah, so also is Hell a great sign of His powers. If the existence of the moon and the alternation of the night and day so regularly were not impossible, why should the existence of Hell be impossible as you think it is? You see these phenomena day and night; therefore, they do not surprise you: otherwise these things in themselves also are great marvels of the powers of Allah. If you had not observed them and somebody were to tell you that there is also such a thing as the moon in the world, or, there is a sun which leaves the world dark when it hides and makes the world shine forth with light when it appears, then the people like you would have made jests of it too as you make jests of Hell."
 

Indeed, the Fire is of the greatest [afflictions] meaning in Urdu

یہ دوزخ بھی بڑی چیزوں میں سے ایک ہے