No! Indeed, We have created them from that which they know. (70:39)

Almuntakhab Fi Tafsir Alquran Alkarim

Never, but Hell shall be the place where they make abode, and their permanent residency shall be in abodes of pain. We created them from an insignificant fluid and raised them from dust which they very well know

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

(70:39) By no means! They know that which We have created them from. *26

No! Indeed, We have created them from that which they know. meaning

*26) Here, this sentence can have two meanings: (1) If it is taken to be related to the preceding theme, it will mean: As for the substance these people have been created from, aII men are equal. For if the substance itself be the cause of man's entry into Paradise, then the good and the bad, the wicked and the just, the guilty and the innocent, all should go to Paradise. But a little common sense is enough to decide that man's qualifications for Paradise are created not on the basis of the substance of his creation but only on the basis of his merit and excellence. (2) If this sentence is regarded as an introduction to the following theme, it would mean: "These people think they are secure from Our torment and mock the one who warns them of Our punishment, whereas We can punish them even in this world as and when We please, as well as resurrect them after death as and when We like. They themselves know that We began their creation from an insignificant sperm-drop and developed them into a living man. If they had only considered this mode of their creation, they would never have been involved in the misunderstanding that they now have escaped Our grasp, or that We have no power to create them over again."
 

No! Indeed, We have created them from that which they know. meaning in Urdu

ہرگز نہیں ہم نے جس چیز سے اِن کو پیدا کیا ہے اُسے یہ خود جانتے ہیں