(Bukhari...
(Bukhari, Kitab Ahadithil-Anbiya, Babu Nuzule Isa bin Mariyam; Muslim Babu Nuzule Isa; Tirmizi, Abwabul-Fitan, Babu Nuzule Isa; Musnad Ahmad bin Hanbal, Marwiyyatu Abi Huraira). It is better to explain the significance of breaking the cross, killing the swine and revoking the Jaziya.
As everybody knows the whole structure of Christianity is based upon the belief that God caused the death - a cursed death - on cross to His only son who became a 'Kaffara' (Atonement for the hereditary sin of mankind); and the peculiarity of Christianity among all the religions brought by the previous prophets is that they put the whole emphasis on faith and abrogated the law so much so that they started eating even the pork which was strictly forbidden in Torah.
When Prophet Jesus (a.s.) will come down and will announce that neither was he a son of God nor was he crucified on any cross nor was he made an atonement for anyone's sin, the whole structure of present day Christianity will be demolished. And likewise, when he would explain that he did never allow his followers to abrogate the Law and to eat the pork and treat the Shariah as abrogated, the second peculiarity of Christianity will come to an end.
Thus the words 'will break the cross and will kill the swine' denote the fact that the Christianity as a religion will be abolished; there will be no basis for its peculiar faith nor for its peculiar deeds and behavior. Likewise the words "he will revoke Jaziya mean that the differences of religions will come to an end; everybody will come within the pale of Islam; there will be no need for any war to defend Islam nor anybody will be liable to pay Jaziya.
Thus, all these wordings point to the fact that the whole world will come within the circle of Islam. Abu Huraira said that the Holy Prophet said: "Qiyamah will not come until Jesus; son of Mary (a.s.) comes down". Then the same things have been mentioned as in the previous tradition (Bukhari Kitabul Malahim, Babu Kasrisalib; Ibnu Majah, Kitabul Fitan, Babu Khurujiddajjal).
"Abu Huraira said that the Holy Prophet said: 'What will be your condition when the son of Mary will come down to you and your Imam will be from amongst you'. (Bukhari, Kitab Ahadithil Anbiya, Babu Nuzule Isa; Muslim Babu Nuzu1e Isa; Musnad Ahmad bin Hanbal Marwiyyatu Abi Huraira).