Narrated Ibn `Umar:

We were talking about Hajjat-ul-Wada`, while the Prophet (ﷺ) was amongst us. We did not know what Hajjat-ul-Wada` signified. The Prophet (ﷺ) praised Allah and then mentioned Al-Masih Ad-Dajjal and described him extensively, saying, "Allah did not send any prophet but that prophet warned his nation of Al-Masih Ad-Dajjal. Noah and the prophets following him warned (their people) of him. He will appear amongst you (O Muhammad's followers), and if it happens that some of his qualities may be hidden from you, but your Lord's State is clear to you and not hidden from you. The Prophet (ﷺ) said it thrice. Verily, your Lord is not blind in one eye, while he (i.e. Ad-Dajjal) is blind in the right eye which looks like a grape bulging out (of its cluster).