|The cave of Ashabul Kahfi|
Time travel is the concept of moving between different points in time. Time travel could hypothetically involve moving backward in time to a moment earlier than the starting point, or forward to the future of that point without the need for the traveler to experience the intervening period (at least not at the normal rate). Any technological device – whether fictional or hypothetical – that would be used to achieve time travel is commonly known as a time machine.
There are no record in the holy Quran or tradition of the prophet (pbuh) of time travel back in time. However there is a tiding in the holy Quran of traveling forward to the future.
Allah told the prophet (pbuh) in surah al kahfi 9-26 about a group of young men in an effort of preserving their monotheism and a dog that took refugee in a cave from a tyrant infidel king (also acknowledge by the Jews and Christian). The asbab un Nuzul (occasion of revelation) of the ayah is when a group of Jews ask the prophet (pbuh) about the story of the people of the cave known to them not the Arab to prove His (pbuh) prophethood, and Allah revealed to the prophet (pbuh) the story in surah Al Kahfi.
Ashabul Kahfi were put to sleep by the Almighty for 309 lunar years and then revived, they miraculously thought that they've been sleeping for only a night, surely their body didn't grow old, if yes they might have noticed it, fitting the time travel definition put up by wikipedia, without the need for the traveler to experience the intervening period (at least not at the normal rate).
National geographic documentary on coffee once quoted, Islam give us science, mathematics and coffee. So far many scientific study has proven the prophecy of the Quran on science. The Quran tells the possibility and man took it to the lab and prove it. In surah Al kahfi is the holy Quran telling us that time travel is possible?
I read about time machine, a device or contraption built to enable time travel, thus far nobody found any carcass of any machine of some sort in, under (buried) or any where near the kahfi's cave in Amman... yet?
Then I read about worm hole or time portal, is it possible the kahfi's cave in Amman is a portal or a hole of time itself? I don't know if there has been any study conducted yet.
If both the time machine and time portal exist they would probably go forth and back, but the people of the cave (ashabul kahfi) never come back to their time instead they died after discovering what is going on.
An then I read about cryonics, the preservation of dead body under low temperature so that the body will not decompose and to be revived later in the future. The only drawback in this theory is the body already dead, whilst in the al kahfi story, they are not, they're still alive and are put to deep sleep.
However all three of the above are just theories until i read about hibernation and aestivation which is proven and ongoing, practices by some animal to survive an unfavorable condition. This is done by literally sleep away a duration of time, days, weeks, sometime months and then woke up in the future to continue living.
Is it possible that the ashabul kahfi is experiencing some sort of hibernation for 300 years? Mukjizah is only for the prophet and Karamah is for the chosen people, for the laymen is always cause and effect, therefor it's sure worth inspecting the cave.