It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that he once stood among the people and, after praising and glorifying Allah, mentioned the Dajjal and said: "I warn you against him, and every prophet before me has certainly warned his nation against the Dajjal. Even Sayyiduna Nuh (peace be upon him) warned his people about him. I will tell you a sign about him which no prophet before me has told his people, and that is that the Dajjal will be one-eyed, and Allah cannot be one-eyed."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 6365