Countdown of Hostility

Countdown of Hostility,,, Dajjal's coming is Compulsory before End of Time, Many Islamic Scholars says , Satan was defeated Virtually on the day when Muhammad PBUH addressed his last Address in Makkah,, but Allah Almighty is Justicelike in real, so Allah will never end this world until Satan will Give Off his last weapon Dajjal,,, when Dajjal will come Issa (Maseeh A.S) and Mehdi A.S will kill Dajjal.