"There is none other than One and only One God (Allah)"
This statement declares that God, Almighty, is One and only One, with no associate, partner or equal. He is Perfect, nothing / no one is equal to Him or even similar to Him. The Quran contains 99 descriptive names of God, the following verses depict but a few :
(23) He is Allah, other than whom there is no other God, the Sovereign Lord, the Holly One, the Peace, the Keeper of Faith, the Guardian, the Majestic, the Compeller, the Superb, Glorified be Allah from all that they ascribe as partner (to Him) !
is Allah, the Creator, the Shaper out of nothing, the Fashioner,
His are the most beautiful names. All that is in the heavens and earth
glorifies Him, and He is Almighty, the Wise."