The Messenger has said, “Isa (a.s.) will destroy the Dajjal.”-from Abdullah bin Omar (ra) –Muslim; Nawa (ra) bin Sa'man -Muslim and Tirmizi.
According to the Hadis relating to the return of the Messenger Esa (Jesus) (as) after the appearance of Emam Mahdi (as), it is said that one late afternoon before Asr prayers, the former will descend on the eastern minaret of a Damascus mosque, perched on the shoulders of two malayeks. He is to declare that he has returned to bring an end to the Dajjal.
THE question that arises at this point is, what reason can justify the need for a Messenger from more than two thousand years back in time, to bring an end to the malaise of the Dajjal's reign? Isa (a.s.) is the only person to have been bodily taken away from the earth and to be sent back thousands of years later, (of which two thousand have already elapsed and only Allah is able to tell how much longer it will be before he actually is sent). Could He not have caused the Dajjal to be destroyed by Emam Mahdi (a.s.) or any other contemporary character? Or would it be a burden on Him Who has created too many to count from the time of Adam to the last man to create another human being who would destroy the Dajjal? Incidentally the only other human to have been bodily transported to the heavens was Idris (a.s.) but who will not return to the earth. Only the Messenger Isa (a.s.) is destined to return to the earth in the same state as he was taken up. What might be the reason behind this exceptional and interesting feat?
The only reason is that the entities of Isa (a.s.) of more than two thousand years ago and the Dajjal of today are intricately interwoven. If these two had nothing whatsoever in common, why would one in particular have been chosen to bring an end to the other? Especially since they are so apart in time.
If we take the accepted concept of the Dajjal, that of a huge one-eyed giant astride a mighty horse or a mount, this question becomes even harder to answer while on the other hand, if we accept the Judeo-Christian materialistic civilization as the Dajjal, the question of Isa's (a.s.) coming to destroy it not only seems the perfect answer, it seems as the only logical one as well.
Isa (a.s.) like all other Messengers before him was a 'Mo’men' 'believer' i.e. exponent of sovereignty of Allah by faith and a Bani Israeli by kinship. It was his Ummah, his following, who distorted his teaching, brought about a completely new and different religion resulting in the birth of the materialistic giant in the form of the Dajjal, one that is responsible for imposing its own sovereignty over that of Allah's. If Isa (a.s.) would not take up responsibility for destroying this satanic reign, who would? For the responsibility ultimately lies with him. Allah had caused His Messenger, Isa (a.s.) to be bodily removed to his heavenly abode just as the olema of his times, the Rabbis, Sadducees and Pharisees in collaboration with their Roman rulers were about to nail him to the cross. In his stead, the traitor among his disciples who had betrayed his master for a mere 30 coins, Judas Iscariot was made to look exactly like him in appearance and body by Allah so that the Romans and the Rabbis thought they had crucified Isa (a.s.) when in reality it was Judas, the traitor who died on the cross. Perhaps, it was after his accession to heaven that Allah enabled Isa (a.s.) to see into the future the handiwork of his so called followers and he beseeched the Lord to grant him another chance to right the wrong committed by his Ummah. Or it might have been Allah's ordinance that Isa (a.s.) should return to the earth to bring an end to the mighty Dajjal, whose declaration of being god had been accepted by all mankind including the followers of His last Messenger, the one who caused the establishment if its own sovereignty thereby inducing mankind to shun Allah's. There seems no other logical explanation for relegating the job of the Dajjal's destruction to one particular Messenger who lived thousands of years prior to its existence. I would be too happy to correct myself if any better reasoning can be forwarded for this.
All the Hadis put forward so far have been those where the Dajjal has been specifically mentioned. However, there are many others where the Messenger of Allah has tried to relay the message without naming it. I would like to reiterate that, although the so called 'Muslim' populace of this world declare themselves to be Mo'mens, true believers, they too have joined the rest of the world in accepting the Judeo- Christian materialistic civilization's ideology in all major aspects of their lives, thus have accepted the Dajjal's dominion over them. Only in their personal lives do they accept the Lord's words; however, in that respect also, with the blind aping of the Judeo-Christian civilization, whatever little is adhered to, is overshadowed. In the next few Hadis, we find prophecies of this same thing.