Translation of the verse 25 from Surah Al-Jinn : Number of verses 28 - - page 573 - Part 29.
Say (O Muhammad SAW): "I know not whether (the punishment) which you are promised is near or whether my Lord will appoint for it a distant term.
Say, "I do not know if what you are promised is near or if my Lord will grant for it a [long] period."
(72:25) Say: 'I know not whether what you are promised is near or whether my Lord will prolong its term. *25
*25) The style itself shows that this is an answer which has been given without citing the question. Probably, hearing what has been said above, the opponents might have asked mockingly and tauntingly: "When will the time with which you are threatening us come?" In response, the Holy Prophet (upon whom be peace) was commanded to say: "The time will certainly come, but I have not been told the date of its coming. AIIah alone knows whether is will come soon, or whether a distant term has been set for it. "