He who has full knowledge of all things.
Lo! Allah! With Him is knowledge of the Hour. He sendeth down the rain, and knoweth that which is in the wombs. No soul knoweth what it will earn tomorrow, and no soul knoweth in what land it will die. Lo! Allah is KNOWER, Aware. (31:34) The Holy Quran
And with Him are the keys of the Invisible. None but He knoweth them. And HE KNOWETH WHAT IS IN THE LAND AND THE SEA. NOT A LEAF FALLETH BUT HE KNOWETH IT, not a grain amid the darkness of the earth, naught of wet or dry but (it is noted) in a clear record.
(6:59) The Holy Quran
From the root 'a-l-m with the classical Arabic connotations: to have knowledge, be cognizant, be certain to be aware, to have intuitive knowledge to act according to knowledge.