What would you do if you come across some body who claims to be God? I know that, being a Muslim you would just ignore him!... What if the claimant can also perform some illusions and tricks? you would still ignore him because he is familiar to you. You hear about these kind of guys very often. They are infamously called God men! and available in plenty in countries like India. Some small time illusions and magic are the skills they use, to make the people fall for them.
But what if you come across somebody who not only claims to be God but also perform extraordinary feats like making the clouds rain at his will... splits a person in to two and bring him back to life...make people who don't follow him starve etc? In all the likely hood, you would believe and follow him! He would be the one eyed Dajjal(Antichrist)! He will perform Illusions and tricks and evils like no other has performed on the face of earth. If you think that your iman (Belief) is too strong to withstand any such tests, you might want to read the following Hadith(teaching) of prophet (peace and blessing be upon him):
"Those who hear about Dajjal should stay far from him. By Allah! A person will approach him thinking him to be a Believer, but on seeing his amazing feats he will become his follower."
It is important for a Muslim to believe in the emergence of Dajjal as it is the One of the major signs of Qiyamah (Doomsday) which is one of the pillars of faith in Islam. We should prepare our self and our kids for the times of Dajjal as his emergence could be any time.
The scene before his arrival
Before the emergence of Dajjal there will be three years of drought.
Where he comes from?
He will emerge between Shaam and Iraq, and his emergence will become known when he is in Isfahaan (province of Iran located in the center of Iran) at a place called Yahudea.
His characteristics
Maseeh-ud-Dajjal will be short and his legs will be crooked. The hair on his head will be extremely twisted. He will have one eye, while his other eye will be flat. It will be neither deep, nor protruding.There will be a thick fingernail-like object in his left eye. The letters "Kaa" "Faa" "Raa" will appear on his forehead which can be read only by Mu'mineen (Muslims) regardless of them being literate or not. He will have a wheatish complexion.
Who will follow him?
The Yahudis (Jews) of Isfahaan will be his main followers. Apart from having mainly Yahudi followers, he will have a great number of women followers as well.
His feats and claims
He will claim to be God. He will have with him fire and water, but in reality the fire will be cold water while that what appears to be cold water will in reality be a blazing fire. He will travel the entire world at amazing speed. He will send down rains upon those who believe in him, which in turn will cause good crops to grow, trees to bear fruit and cattle to grow fat. He will cause drought to those who disbelieve in him, resulting in starvation and hardship for them. During those trying times the Mu'mineen(Muslims) will satiate their hunger through the recitation of Subhanallah (Glory be to Allah (God)) and La'ilaha Ilallahu. (There is no God but Allah). A hidden treasures will spill forth at his command. He will stay on this Earth for a period of forty days; the length of the first day will be one year, the second day will be equal to one month, the third day will be equal to a week and the remaining days will be normal.
Dajjal's Killing
Prophet Jesus(Peace be upon him) will descend to the white Minaret (Nawwas-b-Samaan/Muslim) in the east of Damascus, wearing two garments died with saffron, placing his hands on the wings of two angels.
The Dajjal on seeing Prophet Jesus (Peace be upon him) among the Muslims will begin to dissolve like salt in water and will begin to flee. Prophet Jesus (Peace be upon him) will say to him, ''You will remain alive until I strike you with my spear, ''He will catch up with him at the Eastern gate of Ludd (Ludd is a mountain in Syria. Some say that it is a village in Jerusalem, and some say that it is a village in Palestine) and then Prophet Jesus(Peace be upon him) will kill him with a small spear.
How do you protect yourself from Dajjal?
Reciting of Surah - Kahf- The recitation of Surah Kahf is a safe guard from the Dajjal's turmoil
Seeking refuge in Allah- Whoever seeks Allah's refuge and protection from Dajjal's fitna(trials) especially in Salah, Inshallah will be protected.
Staying miles apart- When the Dajjal appears one should stay as far away from him as possible.
Safe Haven of Makkah and Madinah- One should try to migrate to Makkah or Madinah, as he will not be able to enter these two holy cities.
Knowledge of Allah's Attributes- One should seek Islamic knowledge especially knowledge of Allah's attributes. By possessing knowledge of Allah's attributes one will not be misled by the Dajjal.
Further Reading: http://www.inter-Islam.org/faith/Majorsigns.html#dajaal