Anti-Christ. Also known as Maseeh ad-Dajjal. See Ahadeeth regarding "the Final Hour" in both Sahih books. Sahih Bukhari, Hadith 649, 650, Vol. IV. Sahih Muslim, Kitab al-Fitan wa Isharat as-Say'ah.

(literally "liar") Antichrist

The ultimate enemy of Sunni Islam who will overcome the entire Muslim world before being slain by Jesus at the end of time; a Jew. Has been identified in modern times with: Attaturk, Nassar, Khoumeini, Israel and U.S., various Popes, the UN, etc...