There are many signs that will precede him; a general and very important sign is that he will come at a time when there is great confusion, intense disputes and violent death. When people are afflicted by disturbances and fear. Calamities will fall upon the people, so much so that a man shall not find shelter to shelter him from oppression. There will be many battles and fitnaas before his appearance. Every time a fitnaa has come to an end, another will start, spread and intensify. The people will be troubled to such extent that they will long for death. It is then that Imaam Mahdi will be sent.
Abu Saeed al-Khudri has reported that the Messenger of Allah said:
''He will be sent at a time of intense disputes and differences among people and earthquakes.'' (Ahmad)
Imam Mahdi will have to fight many battles, the most important and difficult being the battle against the Christians in which a large number of Muslims will be martyred.
' Yusayr bin Jabir said, "A red sandstorm erupted in the city of Kufah. Afterwards, a man came shouting and repeating the same words, 'O Abdullah bin Mas'ud! The hour has come.' He (Yusayr) then said that he sat up after he was leaning (on his side) and said, ''The hour will not arrive until no inheritance will be divided and no war possessions will bring about satisfaction. ''He pointed with his hands towards Ash-Sham saying, ''An enemy will gather its forces against the followers of Islam.''I said, ''Do you mean Ar-Rum? He said ''Yes.''Then, during this war, fierce fighting will occur. Muslim will ask for a volunteer expedition that will vie to die or return victorious. They will fight until the night separates them. Both sides will return to their camps not yet victorious and the expedition will perish.
Muslims will then (in the third day) ask for volunteer expedition that will vie to die or return victorious. They will fight until the night separates them. Both sides will return to their camp not yet victorious and the expedition will perish. In the fourth day, the rest of the Muslim forces will turn against them (the disbelieves) and Allah will defeat them (the disbelieves). They will suffer casualties never heard of before or he said, ''Never seen before, even birds flying near them will not pass without falling down dead.
Afterwards, sons of the same fathers (from the Muslim side), who were near a hundred, will count the survivors and will find out only one of them survived. Therefore, what war possession will bring satisfaction and what inheritance will be divided? While they are doing this they will hear of an even bigger calamity; That is, a man will scream amongst them that the Dajjal has appeared among their families which they left behind. They will discard what they have in their hands and proceed. They will send ten horsemen as an expedition force.
The Messenger of Allah said, ''I know their names and their fathers name and the colours of their horses. They will be the best horsemen on the face of Earth, ''or (he said) ''(They) Will be amongst the best horsemen on the face of Earth.'' (Muslim)
The cause of this great battle will be the Christians. The Christians and Muslims as allies will conquer a third enemy. However, the Christians will act treacherously as they will claim the victory on the strength of their religion, thus the Muslims will be driven to arms and will fight them.
Dhu Makhbar said, ''I heard the Apostle of Allah () say, ''You will make a secure peace with the Byzantines, then you will fight an enemy behind you, and you will be victorious, take the boot, and be safe you will the return and alight in a meadow with mounds and one of the Christians will raise the cross and say, 'The cross has conquered'. One of the Muslims will become angry and smash it, and the Byzantines will act treacherously and prepare for battle.''
The great war between the Christians and Muslims will result in the Muslims conquering Constantinople (which is modern day Istanbul) without army by the sheer force of Takbeer (Allahu Akbar).
Abu Hurairah reports that the Prophet said, ''Have you heard of a town of which a part is in the sea?''
''Yes'' said they. He said: 'The last hour shall not occur till 70,000 of the children of Isaac shall attack it. When they come to it, they (Muslims) will not fight with arms, nor throw arrows. They will only say: There is no god but Allah, Allah is the greatest, and then on of its sides will fall down. They will recite for the second time : there is no god but Allah, Allah is the greatest, and then another of its side will fall down. After that they will say it for the third time: there is no god but Allah and Allah is the greatest, and then it will be opened for them and they will enter and acquire booty. While they will be dividing the booty, a proclaimer will come to them and proclaim: 'Verily Dajjal has come out. 'Then they will leave everything and return. ' (Muslim)
It should be noted that the conquests will take place a very short period. Abdullah-b-Busr has reported that the Messenger of Allah has said: 'Between the Great War and the conquest of the city (Constantinople) there will be six years, and the Dajjal shall appear in the seventh year,' (abided)
The Great Famine
There will be a famine for three years before his appearance. In the first year of the famine the heaven will withhold one third of its rain and the earth one third of its crops. In the second year of the famine heaven will withhold two thirds of its rain and the earth will withhold two thirds of its crops. In the third year there will not be a single drop of rain and not a single thing will grow and thus all the animals with hoofs and biting teeth will die and the Tasbeeh will suffice the believers hunger. (Asma-b-Yauzeed-Mishkat)
Conquering Constantinople with Takbir, the Muslims will begin to take the booty. While they are distributing the war posses- sions a proclaimer will proclaim that the Dajjal has appeared and causing fitna in your homes. On hearing this cry the Muslims will leave the booty and head towards Syria1. It will come to their knowledge that this was a false rumour. However after reaching Syria the Dajjal will truly emerge. He will come out from a road between Syria and Iraq2 and his emergence will become known in Isfahan3 at a place called Yahoodah. Riding a white ass4, the two ears of which will be forty hands apart, 70,000 Jew's of Isfahan will follow him with hoods on their heads. Also accompanied by Devils6 and Jewish magicians7 he will first claim Prophethood8 and then God hood. Travelling as fast as those clouds which are driven by the winds he will travel to east and west entering every country, carrying out murders, pillage, devastation and performing unusual feats wherever he goes9.
Dajjal. On seeing the Dajjal he will shout, "O people this is the Dajjal the Prophet mentioned and warned the believers of". Dajjal will order to kill him. He will be placed on his belly and severely beaten. He will be asked, "Do you still not believe in him?" "No! You are the lying Dajjal" he will reply. The true believer will then be sawn into two pieces, the Dajjal will walk in between the two pieces and address him, "Stand up." The true believer will become alive and stand up in one piece. Yet again he will be asked, "Do you now believe in me?" He will reply, "It has only added to my insight concerning you that you are really the Dajjal." The believer will then proclaim, "O people he will not be able to do anything to any man after me." The Dajjal angry at his refusal will grab hold of him and place a knife between his neck and throat to slaughter him but he will be unsuccessful as Allah will place copper in that area and the knife will find no way to penetrate. The Dajjal will grab hold of his hands and legs and throw him into the fire. However, the fire will turn into a pleasant garden for him. This person will be the greatest martyr in the eyes of Allah and achieve the highest position due to his first death, which was caused by severance of the body in two pieces.(Abu Saeed al-Khudri /Muslim)
Doctors and surgeons are not able to restore the eyesight of those born blind or cure the leper. Dajjal will be able to cure those born blind, restore their eyesight and cure the leper. (Abdullah-b-Mugaffal-Kanzul-Unimal)
Dajjal's Greed
He will have a mountain of bread with him but he will only give bread to those that believe and follow him. (Jabir-b-Abdullah-An-Nihaya)
Dajjal Lures the Women
The Dajjal will make a stop at a place called Markanat, near Taif. On hearing about his arrival the womenfolk will rush towards him, the men will be forced to tie their mothers, daughters, and sisters fearing they will believe in him and get caught up in fitna. (Ibne Umar-Musnad Ahmad)