It is narrated from Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: "The eye of the Dajjal will be green like glass, and we seek refuge with Allah from the punishment of the grave."
Hadith Referenceسلسله احاديث صحيحه / الفتن و اشراط الساعة والبعث / 3646