Narrated Ibn Umar:

(Later on) Allah's Apostle (once again) went along with Ubai bin Ka'b to the garden of date-palms where Ibn Saiyad was staying. When the Prophet entered the garden, he started hiding himself behind the trunks of the date-palms as he wanted to hear something from the Ibn Saiyad before the latter could see him. Ibn Saiyad was lying in his bed, covered with a velvet sheet from where his murmurs were heard. Ibn Saiyad's mother saw the Prophet while he was hiding himself behind the trunks of the date-palms. She addressed Ibn Saiyad, "O Saf!" (And this was his name). Ibn Saiyad got up. The Prophet said, "Had this woman let him to himself, he would have revealed the reality of his case." Then the Prophet got up amongst the people, glorifying Allah as He deserves, he mentioned Ad-Dajjal, saying, "I warn you about him (i.e. Ad-Dajjal) and there is no prophet who did not warn his nation about him, and Noah warned his nation about him, but I tell you a statement which no prophet informed his nation of. You should understand that he is a one-eyed man and Allah is not one-eyed."

Narrated Ibn `Umar:

If a man saw a dream during the lifetime of the Prophet he would narrate it to the Prophet. Once I wished to see a dream and narrate it to the Prophet I was young, unmarried, and used to sleep in the Mosque during the lifetime of the Prophet. I dreamt that two angels took me and went away with me towards the (Hell) Fire which looked like a well with the inside walls built up, and had two side-walls like those of a well. There I saw some people in it whom I knew. I started saying, "I seek Refuge with Allah from the (Hell) Fire, I seek Refuge with Allah from the (Hell) Fire." Then another angel met the other two and said to me, "Do not be afraid." I narrated my dream to Hafsa who, in her turn, narrated it to the Prophet. He said, "What an excellent man `Abdullah is if he only observes the night prayer." (Salem, a sub-narrator said, "Abdullah used not to sleep at night but very little hence forward."