Say, “”I do not say to you that with me are treasures of Allah nor that I know the unseen, and I do not say to you that I am an angel. I do not follow anything except that which is communicated to me.”” Say, “”Are the blind and the seeing equal, then why do you not reflect?”” (R 5)
When Prophet Muhammed (PBH) was not given knowledge of the unseen how can others claim that they know the unseen, specially the future?