Sahih Bukhari | Volume 8 | Hadith Number 232
Narrated by 'Aisha
Some people asked Allah's Apostle about the fore-tellers. Allah's Apostle said to them, "They are nothing (i.e., liars)." The people said, 'O Allah's Apostle ! Sometimes they tell something which comes out to be true." Allah's Apostle said, "That word which comes to be true is what a jinx snatches away by stealing and then pours it in the ear of his fore- teller with a sound similar to the cackle of a hen, and then they add to it one-hundred lies."