when one of his companions (from the tribe of Kalb) told to him, 'Indeed you have been given knowledge of the Unseen, O Commander of the Faithful', Imam 'Ali: (AS) laughed, saying, ?O brother of Kalb, this is not knowledge of the Unseen, but instruction from the Possessor of Knowledge. Verily the knowledge of the Unseen is the knowledge of the Hour, and what Allah, Glory be to Him, has listed in his verse: Indeed the knowledge of the Hour is with Allah. He sends down the rain, and He knows what is in the wombs.?