Narrated Mujahid: We were with Ibn `Abbas and the people mentioned Ad-Dajjal. Someone said, "The word 'Kafir' (unbeliever) is written in between his (Ad-Dajjal's) eyes." Ibn `Abbas said, "I have not heard the Prophet saying this, but he said, 'As regards Abraham, he looks like your companion (i.e. the Prophet, Muhammad), and as regards Moses, he is a brown curly haired man riding a camel and reigned with a strong jute rope, as if I am now looking at him getting down in the valley and saying, "Labbaik".'"
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، قَالَ حَدَّثَنِي ابْنُ أَبِي عَدِيٍّ، عَنِ ابْنِ عَوْنٍ، عَنْ مُجَاهِدٍ، قَالَ كُنَّا عِنْدَ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ فَذَكَرُوا الدَّجَّالَ فَقَالَ إِنَّهُ مَكْتُوبٌ بَيْنَ عَيْنَيْهِ كَافِرٌ. وَقَالَ ابْنُ عَبَّاسٍ لَمْ أَسْمَعْهُ قَالَ ذَاكَ وَلَكِنَّهُ قَالَ " أَمَّا إِبْرَاهِيمُ فَانْظُرُوا إِلَى صَاحِبِكُمْ، وَأَمَّا مُوسَى فَرَجُلٌ آدَمُ جَعْدٌ، عَلَى جَمَلٍ أَحْمَرَ مَخْطُومٍ بِخُلْبَةٍ، كَأَنِّي أَنْظُرُ إِلَيْهِ إِذِ انْحَدَرَ فِي الْوَادِي يُلَبِّي ".
sunnah.com