Often nonbelievers ask the question about the existence of God. They say that how we can convince ourselves without observing the physical presence of someone. Some worship man-made deities like statues made of stone of some imaginary figures, some bow before trees, rivers and even human beings. Prophet Mohammad’s declaration of the unity of God and His existence people who worshiped idols asked the messenger of God about the characteristics of his creator.
In reply to this question God revealed: “Say (O Muhammad): He is Allah, (the) One, Allah, the SelfSufficient Master (Whom all creatures need, He neither eats nor drinks). He begets not nor is He begotten. And there is none co-equal or comparable unto Him.”
He also says: Indeed your Lord is Allah Who created the heavens and the earth in Six Days and then He Istawa (rose over) the Throne (really in a manner that suits His Majesty). He brings night as a cover over the day, seeking it rapidly, and (He created) the sun, the moon, the stars subjected to His Command. Blessed be Allah, the Lord of all the worlds!” He also says: “Allah is He, Who raised the heaven without pillars that you can see. Then He Istawa (rose above) the Throne (really in a manner that suits His Majesty). He has subjected the sun and the moon (to continue going round)! Each running (its course) for a term appointed.
He regulates all affairs, explaining the Aayaat (proofs, evidence, verses, lessons, signs, revelations, etc.) in detail, that you may believe with certainty in the meeting with your Lord.
And it is He who spread out the earth, and placed therein firm mountains and rivers and of every kind of fruits. He made in pairs. He brings the night as a cover over the day …” until He says: “Allah knows what every female bears and how much the womb falls short (of their time or number) or exceed. Everything with Him is in due proportion. All-Knower of the unseen and the seen, the Most Great, the Most-High.