Sahih Bukhari Volume 4, Book 54, Hadith Number 508.

Narated By ‘Aisha : The Prophet said, “While the angels talk amidst the clouds about things that are going to happen on earth, the devils hear a word of what they say and pour it in the ears of a soothsayer as one pours something in a bottle, and they add one hundred lies to that (one word).”