He is ALLAH,The One (Verses from Holy Quraan).

Say (O Muhammad (peace be upon him)) "He is Allâh, (the) One.(allah The Self-Sufficient Master, Whom all creatures need, (He neither eats nor drinks).
"He begets not, nor was He begotten.
"And there is none co-equal or comparable unto Him." (Sourat Al-ikhlas).

Hunafâ' Lillâh (i.e. worshiping none but Allâh), not associating partners (in worship) unto Him; and whoever assigns partners to Allâh, it is as if he had fallen from the sky, and the birds had snatched him, or the wind had thrown him to a far off place.(Sourat Al Hajj).

Or have they taken (for worship) âlihah (gods) from the earth who raise the dead?
Had there been therein (in the heavens and the earth) âlihah (gods) besides Allâh, then verily both would have been ruined. Glorified is Allâh, the Lord of the Throne, (High is He) above all that (evil) they associate with Him!
He cannot be questioned as to what He does, while they will be questioned.
Or have they taken for worship (other) âlihah (gods) besides Him? Say: "Bring your proof: " This (the Qur'ân) is the Reminder for those with me and the Reminder for those before me. But most of them know not the Truth, so they are averse.
And We did not send any Messenger before you (O Muhammad (peace be upon him)) but We revealed to him (saying): Lâ ilâha illa Ana (none has the right to be worshipped but I (Allâh)) so worship Me (Alone and none else)."
And they say: "The Most Gracious (Allâh) has begotten a son (or children)." Glory to Him! They (whom they call children of Allâh i.e. the angels, 'Iesa (Jesus) son of Maryam (Mary), 'Uzair (Ezra)) are but honored slaves.
They speak not until He has spoken, and they act on His Command.
Say (O Muhammad (peace be upon him)) "It is revealed to me that your Ilâh (God) is only one Ilâh (God - Allâh). Will you then submit to His Will (become Muslims and stop worshipping others besides Allâh)?"(Sourat Al Anbiya).

And who is more astray than one who calls (invokes) besides Allâh, such as will not answer him till the Day of Resurrection, and who are (even) unaware of their calls (invocations) to them?(Sourat Al Ahqaf)

And verily, if you ask them: "Who created the heavens and the earth?" Surely, they will say: "Allâh (has created them)." Say: "Tell me then, the things that you invoke besides Allâh - if Allâh intended some harm for me, could they remove His harm? Or if He (Allâh) intended some mercy for me, could they withhold His Mercy?" Say : "Sufficient for me is Allâh; in Him those who trust (i.e. believers) must put their trust."(Sourat Al Zumar)


Say: (O Muhammad (peace be upon him) to those polytheists, pagans) "Call upon those whom you assert (to be associate gods) besides Allâh, they possess not even an atom's (or a small ant's) weight, either in the heavens or on the earth, nor have they any share in either, nor there is for Him any supporter from among them.
Say (O Muhammad (peace be upon him) to polytheists, pagans)"Who gives you provision from the heavens and the earth?" Say: "Allâh. And verily, (either) we or you are rightly guided or in a plain error."
Say (O Muhammad (peace be upon him) to polytheists, pagans) "You will not be asked about our sins, nor shall we be asked of what you do."
Say: "Our Lord will assemble us all together (on the Day of Resurrection), then He will judge between us with truth. And He is the Just Judge, the All-Knower of the true state of affairs."
Say (O Muhammad (peace be upon him) to polytheists and pagans): "Show me those whom you have joined to Him as partners. Nay (there are not at all any partners with Him)! But He is Allâh (Alone), the All-Mighty, the All-Wise."(Sourat Sabaa).

That is because Allâh, He is the Truth, and that which they invoke besides Him is Al-Bâtil (falsehood, Satan and all other false deities); and that Allâh, He is the Most High, the Most Great.(Sourat Luqman).