The Dajjal was mentioned in the presence of the Prophet ﷺ, and he said, "Allah is not hidden from you. Allah is not one-eyed," and he gestured with his hand toward his eye, "but the Messiah, the Dajjal, is one-eyed in his right eye, as though his eye were a floating grape."
ذكر الدجال عند النبي ﷺ، فقال: إن الله لا يخفى عليكم، إن الله ليس بأعور، وأشار بيده إلى عينه، وإن المسيح الدجال أعور، العين اليمنى كأن عينه عنبة طاقية.
Bukhari related it in the Book of Monotheism (7407) from Musa bin Ismail, who said, Juwayriyah related to us, from Nafi, from Ibn Umar, who said, and he mentioned it. Juwayriyah is the son of Asma, a trustworthy narrator, whom Imam Ahmad declared trustworthy.