But they, that Day, are in surrender. (37:26)

Almuntakhab Fi Tafsir Alquran Alkarim

But they are at a disadvantage in this Day of Judgement, they give themselves up into Allahs power and they resign themselves to His command

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

(37:26) Indeed, today they are surrendering themselves completely.' *17

But they, that Day, are in surrender. meaning

*17) The first sentence will be addressed to the culprits, and the second to the common spectators, who will be watching the scene of the culprits' departure for Hell. This sentence itself tells of the general conditions at the time. It tells how the haughty and stubborn culprits of the world will be moving towards Hell meekly and without showing any resistance. Somewhere some kind will be seen being pushed about, and no one from among his courtiers will come forward to rescue "his majesty"; somewhere some conqueror of the world and some dictator will be moving away in humiliation and disgrace, and his brave army itself will deliver him for the punishment; somewhere some saint or some holy father will be seen being thrown into Hell, and no one of his disciples will bother to save him froth disgrace; somewhere some leader will be trudging helplessly towards Hell, and those who used to glorify and applaud him in the world, will turn away their eyes from him. So much so that the (over who was ever prepared to sacrifice everything for the beloved in the world, will feel least concerned to save him from his plight. By depicting this scene Allah wants to impress how the relationships of man with man, which are based on rebellion against Allah in the world, will break in the Hereafter, and how the pride of those who are involved in arrogance and conceit here, will be rined.
 

But they, that Day, are in surrender. meaning in Urdu

ارے، آج تو یہ اپنے آپ کو (اور ایک دوسرے کو) حوالے کیے دے رہے ہیں!"