Abdullah bin Abbas reported,
The Prophet ﷺ was taken on the night journey to Bayt al-Maqdis, and he returned that very night. He told the people about his journey, describing landmarks of Bayt al-Maqdis and their caravan. Some people said, "We believe Muhammad in what he says," but others apostatized and became disbelievers. Allah struck their necks alongside Abu Jahl.Abu Jahl said, "Muhammad threatens us with the tree of Zaqqum! Bring dates and butter so we may make our own zaqqum."The Prophet ﷺ saw Dajjal in his actual form, with his own eyes, not in a dream, and he saw Isa, Musa, and Ibrahim, peace be upon them.The Prophet ﷺ was asked about Dajjal. He said, "He is pale white." Hasan reported the wording, "I saw him as a heavyset, pale white man, one of his eyes protruding as if it were a shining star, the hair of his head like the branches of a tree.I saw Isa as a young man, white-skinned, with curly hair, sharp-sighted, and well-built.I saw Musa as dark-complexioned and tall, with thick hair." Hasan said, "thick hair," "and a strong build.I looked at Ibrahim, and I could not look at any part of him without finding it resembled myself, as if he were your companion."Then Jibreel 
said, "Greet Malik," so I greeted him.
Azami 8622
Hasanعن ابن عباس، قال
أسري بالنبي ﷺ إلى بيت المقدس، ثم جاء من ليلته، فحدثهم بمسيره وبعلامة بيت المقدس وبعيرهم، فقال ناس: قال حسن نحن نصدق محمدا بما يقول، فارتدوا كفارا، فضرب الله أعناقهم مع أبي جهل، وقال أبو جهل: يخوفنا محمد بشجرة الزقوم! هاتوا تمرا وزبدا فتزقموا. ورأى الدجال في صورته رؤيا عين ليس رؤيا منام، وعيسى، وموسى، وإبراهيم صلوات الله عليهم، فسئل النبي ﷺ عن الدجال؟ فقال: أقمر هجان- قال حسن: قال: رأيته فيلمانيا أقمر هجانا- إحدى عينيه قائمة كأنها كوكب دري، كأن شعر رأسه أغصان شجرة، ورأيت عيسى شابا أبيض جعد الرأس، حديد البصر، مبطن الخلق، ورأيت موسى أسحم آدم، كثير الشعر- قال حسن: الشعرة- شديد الخلق، ونظرت إلى إبراهيم فلا أنظر إلى إرب من آرابه إلا نظرت إليه مني كأنه صاحبكم، فقال جبريل عليه السلام: سلم على مالك فسلمت عليه.
Imam Ahmad (3546) and Abu Yaala (2720) both narrated it from the hadith of Hasan bin Musa, who said, "Thabit Abu Zayd narrated to us, from Hilal, from Ikrima, from Ibn Abbas," and he related it. The wording given here is that of Ahmad, and its isnad is hasan because of Hilal, who is Hilal bin Khabab, about whom there is disagreement, though his hadith is hasan.Haythami said in Majma (1/66–67), "Ahmad narrated it, and its narrators are trustworthy, except that regarding Hilal bin Khabab, Yahya Qattan said that his memory changed before his death, while Yahya bin Main said, he did not change and did not become confused, he is trustworthy and reliable."Abu Yaala narrated it with an addition, "And he saw Dajjal in his true form, a waking vision, not a dream, along with Isa bin Maryam and Ibrahim." He said, the Prophet ﷺ was asked about Dajjal, so he said, "I saw him as a huge man, pale and fair-skinned, one of his eyes protruding as though it were a radiant star, and his hair was as though it were the branches of a tree. I saw Isa as a young man, fair-skinned, with curly hair, sharp-sighted, of slender build. I saw Musa as dark-skinned, with abundant hair, of strong build. And I saw Ibrahim, and I did not look at any part of his body without seeing him resembling your companion." He said, "Jibreel said to me, 'Greet your father,' so I greeted him."Ibn Kathir reported it in his Tafsir through the route of Ahmad, and said, "Nasai also narrated it," that is in Kubra (11484), "from the hadith of Abu Zayd Thabit bin Yazid, from Hilal, who is Ibn Khabab, with the same wording, and it is a sahih isnad." End of quote.His saying "al-filmani" is derived from "al-film," and al-film means the huge one, massive in body. His saying "al-aqmar" means the white one. His saying "al-irb" means the limb.