The description of the Dajjal by the tongue of the Prophet (peace and blessings be upon him)

It is narrated from Sayyiduna al-Nawwas bin Sim'an al-Kilabi (may Allah be pleased with him) that one morning the Messenger of Allah (peace and blessings be upon him) mentioned the Dajjal, and he (peace and blessings be upon him) (while describing the gravity of his tribulation) at times lowered his voice and at times raised it, until we began to think that he was (hiding) in the cluster of date palms. When we came to the Messenger of Allah (peace and blessings be upon him) in the evening, he (peace and blessings be upon him) sensed this (fear) in our faces and said: "What is the matter with you?" We said: O Messenger of Allah! You mentioned the Dajjal in the morning and lowered and raised your voice, until we began to think that he was in the cluster of date palms. He (peace and blessings be upon him) said: "If he comes out while I am among you, I will contend with him on your behalf; and if he comes out after me, then every person will be his own defender, and Allah is my guardian over every Muslim. He will be a young man with tightly curled hair and an upright beard, as if he resembles Abd al-Uzza bin Qatan. Whoever among you encounters him should recite before him the opening verses of Surah al-Kahf." Then he (peace and blessings be upon him) said: "I think he will come out from between Syria and Iraq, and he will spread great corruption to the right and to the left. O servants of Allah! Stand firm." We said: O Messenger of Allah! How long will he stay on the earth? He (peace and blessings be upon him) said: "Forty days: one day will be like a year, one day like a month, one day like a week, and the rest of his days will be like your ordinary days." We said: O Messenger of Allah! On the day that will be like a year, will the prayers of a single day suffice us? He (peace and blessings be upon him) said: "No, rather you must estimate the time for it." We said: O Messenger of Allah! How fast will he move on the earth? He (peace and blessings be upon him) said: "Like a cloud driven by the wind from behind." He (peace and blessings be upon him) said: "He will come to a people and call them, and they will believe in him and accept what he says. He will command the sky and it will rain, and he will command the earth and it will grow vegetation. In the evening their livestock will return to them with their humps higher than before, their udders full of milk and their flanks distended. Then he will go to another people and call them, but they will reject what he says. He will turn away from them, and their wealth will follow him, and nothing will remain with them and they will become stricken with drought. Then he will pass by a ruin and tell it to bring out its treasures, and its treasures will follow him just as swarms of bees follow their leader. Then he will call a young Muslim man and strike him with the sword and cut him into two pieces, like a target split in two for archery. Then he will call him, and he will come forward laughing, with a beaming face." He (peace and blessings be upon him) said: "While he is in this state, Allah Almighty will send Isa ibn Maryam (peace be upon him). He will descend by the white minaret to the east of Damascus, wearing two yellow-dyed garments (mahrudatayn), with his hands resting on the wings of two angels. When he lowers his head, drops will fall, and when he raises it, sweat as clear as pearls will trickle down from it. Any disbeliever whom the scent of his breath reaches will die, and his breath will reach as far as his sight reaches. He will search for the Dajjal until he finds him at the gate of Ludd, and Allah will kill him. Then Isa ibn Maryam (peace be upon him), that Prophet of Allah, will come to the people whom Allah had protected from him (the Dajjal); he will wipe (clean) their faces and tell them of their ranks in Paradise. While they are in this state, Allah will reveal to him: 'O Isa! I have brought forth servants of Mine whom no one has the power to fight, so take My servants away to the Tur.' Then Allah will send Gog and Magog, who will swoop down from every height. Their first group will pass by the Lake of Tiberias and drink all its water; when their last group passes, it will say: 'There used to be water here once.' The Prophet of Allah Isa and his companions will be besieged, until the head of an ox will be better for them than a hundred dinars are for you today. Then the Prophet of Allah (peace and blessings be upon him) and his companions will beseech Allah, and Allah will create worms (al-naghaf) in the necks of them (Gog and Magog), from which they will all die at once, like the death of a single soul. Then the Prophet of Allah (peace and blessings be upon him) and his companions will come down, and they will not find even a span of ground that is not filled with their grease, their stench and their blood. Then Isa (peace be upon him) and his companions will supplicate to Allah, and Allah will send birds like the necks of Bactrian camels, which will carry them off and throw them wherever Allah wills. Then Allah will send down a rain from which no house of mud or of hair will remain covered, and it will wash the earth until it leaves it as clean as glass. Then it will be said to the earth: 'Bring forth your fruit and restore your blessings.' On that day a whole group will eat a single pomegranate and sit in the shade of its rind, and milk will be so blessed that a single milking she-camel will suffice a large group of people, a single cow will suffice a whole tribe, and a single goat will suffice a whole clan. While they are in this state, Allah will send a pleasant wind that will pass beneath their armpits and take the soul of every Muslim, and only the worst people will remain, who will commit fornication openly like donkeys, and it is upon them that the Hour will be established."
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that a boy was born to the brother of the Mother of the Believers Sayyidah Umm Salamah (may Allah be pleased with her), and they named him al-Walid. When this was mentioned to the Messenger of Allah (peace and blessings be upon him), he (peace and blessings be upon him) said: "You have named him after the names of your Pharaohs. There will certainly be a man in this Ummah called al-Walid, who will prove to be worse for this Ummah than Pharaoh was for his people." Imam al-Zuhri says: If al-Walid bin Yazid becomes caliph, then he is the one meant; otherwise it is al-Walid bin Abd al-Malik.
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it; and (according to the author of al-Mustadrak) this is without any doubt or uncertainty al-Walid bin Yazid.

It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that he came to al-Walid bin Yazid, and al-Walid asked him: What did you hear the Messenger of Allah (peace and blessings be upon him) say about the Hour? He said: I heard him (peace and blessings be upon him) say: "You and the Hour are like these two fingers (in closeness)."
The two Shaykhs (Bukhari and Muslim) agreed on recording this hadith through the chains of Shu'bah from Qatadah and Abu al-Tayyah.