Abddullah Ibn 'Umar said, The Prophet (Peace be upon him) stood up to address the people. He praised Allah as He deserved to be praised, then he spoke about the Dajjaal (anti-Christ): 'I warn you against him; there is no Prophet who has not warned his people against him, even Noah warned his people against him. But I will tell you something which no other Prophet has told his people. You must know that the Dajjaal is one-eyed, and Allah is not one-eyed.'
The Dajjaal will claim that he is god and he will ask people to believe in him.
Ibn Shihaab said: "'Umar Ibn Thaabit al-Ansaaree told me that some of the Companions of the Prophet (Peace be upon him) told him that on the day when he warned the people about the Dajjaal, the Prophet (Peace be upon him) said: 'There will be written between his eyes the word Kaafir (unbeliever). Everyone who resents his bad deeds - or every believer - will be able to read it.' He also said, 'You must know that no one of you will be able to see his Lord until he dies.' " [Muslim, Bukhari]
Ibn 'Umar said, "The Prophet (Peace be upon him) mentioned the Dajjaal to the people. He said, 'Allah is not one-eyed, but the Dajjaal is blind in his right eye, and his eye is like a floating grape.' " [Muslim]
Anas Ibn Malik said, "The Prophet (Peace be upon him) said, 'There has never been a Prophet who did not warn his people against that one-eyed liar. Verily he is one-eyed and your Lord is not one-eyed. On his forehead will be written the letter Kaf, Fa, Ra (Kaafir).' " [Muslim, Bukhari]
Hudhayfah said, "The Prophet (Peace be upon him) said, 'I know more about the powers which the Dajjaal will have than he will know himself. He will have two flowing rivers: one will appear to be pure water, and the other will appear to be flaming fire. Whosoever lives to see that, let him choose the river which seems to be fire, then let him close his eyes, lower his head and drink from it, for it will be cold water. The Dajjaal will be one-eyed; the place where one eye should be will be covered by a piece of skin. On his forehead will be written the word Kaafir, and every believer, whether literate or illiterate, will be able to read it.' " [Muslim]
Warning against the anti-Christ anti christ antichrist destruction of the world last hour warning
One day, When the Prophet (Peace be upon him) had finished his prayer, he sat on the pulpit, smiling, and said, 'Everyone should stay in his place.' Then he said, 'Do you know why I had asked you to assemble?' The people said, 'Allah and His Messenger know best.'
"He said, 'By Allah, I have not gathered you here to give you an exhortation or a warning. I have kept you here because Tameem ad-Daaree, a Christian man who has come and embraced Islam, told me something which agrees with that which I have told you about the Dajjaal.
He told me that he had sailed in a ship with thirty men from Banu Lakhm and Banu Judhaam. The waves had tossed them about for a month, then they were brought near to an island, at the time of sunset. They landed on the island, and were met by a beast who was so hairy that they could not tell its front from its back. They said, "Woe to you! What are you?" It said, "I am al-Jassaasah." They said, "What is al-Jassaasah?" It said, "O people, go to this man in the monastery, for he is very eager to know about you." Tameem said that when it named a person to us, we were afraid lest it be a devil.
"Tamim said, 'We quickly went to the monastery. There we found a huge man with his hands tied up to his neck and with iron shackles between his legs up to the ankles. We said, "Woe to you, who are you?" He said, "You will soon know about me. Tell me who you are." We said, "We are people from Arabia. We sailed in a ship, but the waves have been tossing us about for amonth, and they brought us to your island, where we met a beast who was so hairy that we could not tell its front from its back. We said to it, "Woe to you! What are you?" and it said, "I am al-Jassaasah."
We asked, "What is al-Jassaasah?" and it told us, "Go to this man in the monastery, for he is very eager to know about you." So we came to you quickly, fearing that it might be a devil.'
"The man said, 'Tell me about the date-palms of Baysaan.' We said, 'What do you want to know about them?' He said, 'I want to know whether these trees bear fruit or not.' We said, 'Yes.' He said, 'Soon they will not bear fruit.' Then he said, 'Tell me about the lake of at-Tabariyyah [Tiberias, in Palestine].' We said, 'What do you want to know about it?' He asked, 'Is there water in it?' We said, 'There is plenty of water in it.' He said, 'Soon it will become dry.' Then he said, 'Tell me about the spring of Zughar.' We said, 'What do you want to know about it?' He said, 'Is there water in it, and does it irrigate the land?' We said, 'Yes, there is plenty of water in it, and the people use it to irrigate the land.'
"Then he said, 'Tell me about the unlettered Prophet - what has he done?' We said, 'He has left Makkah and settled in Yathrib.' He asked, 'Do the Arabs fight against him?' We said, 'Yes.' He said, 'How does he deal with them?' So we told him that the Prophet (Peace be upon him) had overcome the Arabs around him and that they had followed him. He asked, 'Has it really happened?' We said, 'Yes.' He said, 'It is better for them if they follow him. Now I will tell you about myself. I am the Dajjaal. I will soon be permitted to leave this place: I will emerge and travel about the earth. In forty nights I will pass through every town, except Makkah and Madeenah, for these have been forbidden to me.
Every time I try to enter either of them, I will be met by an angel bearing an unsheathed sword, who will prevent me from entering. There will be angels guarding them at every passage leading to them.'
"The Prophet (Peace be upon him), striking thepulpit with his staff, said: 'This is Tayyibah, this is Tayyibah, this is Tayyibah, [i.e. Medina]. Have I not told you something like this?' The people said, 'Yes.' He said, 'I liked the account given to me by Tameem because it agrees with that which I have told you about the Dajjaal, and about Makkah (Mecca) and Madeenah (Medina). Indeed he is in the Syrian sea or the Yemen sea. No, on the contrary, he is in the East, he is in the East, he is in the East' and he pointed towards the East." [Muslim]