In the accounts the emergence of Dajjal was shown as on of the most frightening happenings of the universe. Therefore our Prophet (PBUH) informed his followers about it especially, avoided its sedition and asked his followers to avoid it. He said, " There would be no creation (creating more trouble) than the Dajjal right from the creation of Adam to the Last Hour."(1) and attracted people's attention to its big destruction and terror. In another hadith he states that Dajjal is more effective than the devil (2). The fact that not only our Prophet (PBUH) but also all of the other prophets without any exception warned their followers and wanted them to avoid it (3) indicates that the sedition of Pharaohs and Namruds will be small compared to that of Dajjal's.
The evil of Dajjal is so great that according to what our Prophet (PBUH) informs us when he emerges; people will have to go to the mountains out of fear and in order to be free of his evils. (4)
Our Prophet (PBUH) found it necessary to mention Dajjal during the Farewell Sermon in Farewell Hajj, in which he summarized the essentials of Islam, as he always did and warned his followers like the other prophets because of the greatness of Dajjal's evil and sedition.(5)
Dajjal is an Arabic word derived form dajl. Dictionaries define Dajjal as "liar, fraud, a seditious and damned person who confuse the minds, hearts, good and bad, the right and the wrong, who hides the real face of something by gilding it, who wanders everywhere."
In a hadith attention is attracted to his "lying and misguiding" characteristics.
Dajjal is a deceiving and denying person who does frightening tricky things. The most terrible aspect of his sedition is the fact that he tries to take away people's beliefs and to destroy people's lives in this world and in the hereafter by setting up a system based on atheism. He carries out his sultanate based on atheism, immorality and lies not by himself but together with his committee that love him and with his system that he represents blasphemously and hypocritically.
Dajjal is also called al-Masih ad-Dajjal "The False Messiah" by adding the word Messiah. The reason why he is called masih is that one of his eyes is blind. Masih has various definitions in the dictionaries. Some of the meanings that can be attributes for Dajjal are as follows: without eyebrows and an eye on one side of his face, congenitally imperfect, evil, ill-omened, liar, serial killer.
In a hadith he is mentioned as "Masih al-Dalalah" "The Messiah of Misguidance".(7)
May Allah protect all of us from Dajjal's evil.