Musnad Ahmad 32:1494

'Abd al-Wahhab narrated to us, Sa'id narrated to us, from Qatadah, from Anas ibn Malik, that the Prophet (peace and blessings of Allah be upon him) said: "No prophet was sent before me except that he warned his people about the Dajjal, the liar. So beware of him, for he is one-eyed, and your Lord is not one-eyed."