Whats the prophecy of Damascus and the Mahdi?

I found an article on how Islam views the second coming of Jesus and their end-time prophecies. Damascus is central to their expectations of the Mahdi.

Jesus (or Isa), who Islam says was not crucified, did not die, and was not resurrected (Sura 4:156-159), returns to end the Dajjal's reign. Jesus heads to Damascus where he confronts and kills the Dajjal, with the side benefit of the battle to the Muslims being the complete eradication of the Jewish people.

It should be noted that the above tradition is what Sunni Muslims believe will happen, while the Shiites instead hold that the Dajjal will fall at the hands of the Mahdi, who they say is the 12th Imam, empowered to work miracles, and their promised savior from the Dajjal.

After the Dajjal is disposed of by either Jesus or the Mahdi, it is at this point the invasion of Gog and Magog, who are presented as two nations having a vast army, occurs. Chronicled in the Koran (Sura 18 and 21) and Hadiths, they invade Israel and confront Jesus and his followers. The Islamic Jesus cries out in fear to Allah who defeats the large army with deadly insects, which are reminiscent of the locusts in Revelation 9.

More information in the article below.