It is narrated from Hazrat Anas (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Whenever a prophet was sent to the world, he surely warned his nation about the one-eyed liar. Be aware! The Dajjal will be one-eyed, and your Lord is not one-eyed, and between his (Dajjal's) two eyes will be written "Kafir" (disbeliever).
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 13925