Narrated Ibn `Abbas
The Prophet (ﷺ) said, "Whoever claims to have seen a dream which he did not see, will be ordered to make a knot between two barley grains which he will not be able to do; and if somebody listens to the talk of some people who do not like him (to listen) or they run away from him, then molten lead will be poured into his ears on the Day of Resurrection; and whoever makes a picture, will be punished on the Day of Resurrection and will be ordered to put a soul in that picture, which he will not be able to do." Ibn `Abbas also narrated a similar hadith.
Narrated Ibn `Umar
Allah's Messenger (ﷺ) said, "The worst lie is that a person claims to have seen a dream which he has not seen."