Just read about Dajjal in Rihad-u-saliheen during tahlim and I observed that many muslims know nothing about Dajjjal. They believe Dajjjal (anti-christ) is believed by the christians alone.
Funy enough, most christains are not detailed in the understandings of everything about Dajjjal as much as the prophet puts it.
Some of my christain colleagues at work were reaLly amazed how much I know with details about dajjjal more than they know or have heard of.

My major concern here is that the prophet (pbuh) said in one of his explanations that the more the ummah forgets about Dajjal, the sooner it is for him to appear.

To keep us awake and prepared about his coming, am sharing with us the tafsir of Dr. Zakir Naik about Dajjal. Culled from his Facebook page. Very detailed.

Dajjal: In the Light of Quran and Sunnah.

The word Dajjaal is taken from the expression “Dajjala al-ba’eer The root dajala means to mix. The word dajala is used to mean deliberately confusing matters and being vague and ambiguous, The Dajjaal is the one who speaks in vagaries, who tells many lies and deceives many people.

Contents.
a) Description and attributes of the Dajjaal
b)The Dajjaal will not have any children
c) From where the Dajjaal will emerge
d) Places which the Dajjaal will never enter .
e) The followers of the Dajjaal
f) The fitnah of the Dajjaal
g )People of the tribe of Bani Tamim would stand firm against Ad-Dajjal
h) Protection against the fitnah of the Dajjaal
i) The death of the Dajjaal

a) Description and attributes of the Dajjaal

1-The Dajjaal will be a man from among the sons of Adam. He will have many attributes which were described in the ahaadeeth to acquaint people with him and to warn them of his evil.

Hadith-1
Sahih al-Bukhari > Afflictions and the End of the World
Narrated `Abdullah bin `Umar:Allah's Apostle said. "While I was sleeping, I saw myself (in a dream) performing Tawaf around the Ka`ba. Behold, I saw a reddish-white man with lank hair, and water was dropping from his head. I asked, "Who is this?' They replied, 'The son of Mary.' Then I turned my face to see another man with a huge body, red complexion and curly hair and blind in one eye. His eye looked like a protruding out grape. They said (to me), He is Ad-Dajjal." The Prophet added, "The man he resembled most is Ibn Qatan, a man from the tribe of Khuza`a. "
(Bukhari English reference : Vol 9, Book 88, hadith 242, Arabic reference : Book 93, hadith 7215,Sahih al-Bukhari > Interpretation of Dreams :English Ref -Vol. 9, Book 87, Hadith 153 Arabic Ref :-Book 92, Hadith 7112,Sahih Muslim > The Book of Faith: English Ref : Book 1, Hadith 327 , Arabic Ref :- Book 2, Hadith 447)

Hadith-2
Sahih al-Bukhari > Oneness, Uniqueness of Allah (Tawheed) ->
Narrated `Abdullah:-Ad-Dajjal was mentioned in the presence of the Prophet. The Prophet said, "Allah is not hidden from you; He is not one-eyed," and pointed with his hand towards his eye, adding, "While Al-Masih Ad- Dajjal is blind in the right eye and his eye looks like a protruding grape."
(BukhariEnglish reference : Vol. 9, Book 93, Hadith 504; Arabic reference : Book 98, Hadith 7496;Sahih Muslim The Book Pertaining to the Turmoil and Portents of the Last Hour English reference : Book 41, Hadith 7005Arabic reference : Book 55, Hadith 7545)

It's a very long text. Complete text here

https://m.facebook.com/notes/zakir-naik/dajjal-in-the-light-of-quran-and-sunnah-complete-information/266659076820292

See also
http://en.m.wikipedia.org/wiki/Masih_ad-Dajjal