But what you are to do with its mentioning?
It is not you (Muhammad) who is destined to announce its time
But how are you to know
About which thou remindest
In what you are from mentioning/remembering it (what do you know about it or its time)
… day that you are talking about will take place
What concern do you have regarding its explanation? (You are not bound to tell them
Wherein art thou concerned with the talk of its coming
What should be your concern in talking about (its appointed time)
Why (do they ask this question)? It is you who are its reminder (you being one of its signs)
You have no knowledge to say anything about it