“And he revealed to His Servant what he revealed”. (Quran. 53,10)
Prophet Muhammad pbuh never claimed that he knows unseen knowledge (gaib ilm) but always said I am only a man like you, to whom has been revealed that your god is one God. He was given the title of (محمد عبده ورسوله) Adahu wa Rasulahu, what we testify while reciting Shadah. The Prophet’s job to convey the divine message to mankind was no less or no more.
“O people, say what you must say but do not allow Satan to deceive you. I am Muhammad the son of Abdullah, the servant of Allah and His Messenger. By Allah, I do not love that you raise my status above what Allah the Exalted has granted me”. (Musnad Ahmad)
Therefore, the safest course of action is to refer to the Messenger of Allah as the “servant of Allah” and “His Messenger” without adding any exaggerated titles to this.
“Say (O Muhammad SAW): “I possess no power of benefit or hurt to myself except as Allah wills. If I had the knowledge of the Ghaib (unseen), I should have secured for myself an abundance of wealth, and no evil should have touched me. I am but a warner, and a bringer of glad tidings unto people who believe.” (7:188)
The Prophet pbuh said, “The keys of the Unseen are five and no one knows them but Allah: no one knows what is in the womb but Allah, no one knows what will happen tomorrow but Allah, no one knows when it will rain but Allah, no one knows where he will die but Allah, and no one knows when the Hour will be established but Allah.” (Source: Bukhari)