And when it was said, 'Indeed, the promise of Allah is truth (45:32)

Almuntakhab Fi Tafsir Alquran Alkarim

And when it was related to you by Our Messenger that the promise of Allah is the absolute truth and that the predetermined final Hour is an undoubted and inevitable event, you always stated explicitly: “We do not profess to know what the predetermined final Hour is, nor do we recognize it; in effect our opinion of it is only a supposition formed on grounds admittedly insufficient”

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

(45:32) And when it was said to them: 'Surely Allah's promise is true, and there is no doubt regarding the Hour of Resurrection,' you were wont to say: 'We do not know what the Hour (of Resurrection) is. We are simply making conjectures and are not at all certain.' *44

And when it was said, 'Indeed, the promise of Allah is truth meaning

*44) The people mentioned in verse 24 above were those who denied the Hereafter openly and absolutely, here those who are not sure of it although they do not deny its possibility because of conjecture. Apparently there is a vast difference between the two groups in that one of them denies the Hereafter absolutely and the other regards it as possible on the basis of conjecture. But as for the result and final end, there is no difference between them, for the moral consequences of the denial of the Hereafter and of lack of the faith in it are the same. A person whether he disbelieves in the Hereafter or lacks faith in it, will in either case be inevitably devoid of the feeling of accountability before God, and this lack of feeling will necessarily involve him in the error and deviation of thought and action. Only faith and belief in the Hereafter can keep a man on the right track in the world. In the absence of it, both doubt and denial give him a similar attitude of irresponsibility, and since this same attitude of irresponsibility is the real cause of man's being doomed in the Hereafter, therefore neither the denier of it can escape I loll nor the one who lacks faith in it.
 

And when it was said, 'Indeed, the promise of Allah is truth meaning in Urdu

اور جب کہا جاتا تھا کہ اللہ کا وعدہ برحق ہے اور قیامت کے آنے میں کوئی شک نہیں، تو تم کہتے تھے کہ ہم نہیں جانتے قیامت کیا ہوتی ہے، ہم تو بس ایک گمان سا رکھتے ہیں، یقین ہم کو نہیں ہے"