The core of the faith is the “Shahada” (Testimony). This very first pillar of Islam is clearly stated in the Quran as it was also revealed to the recipients of previous Scripture. The Testimony of faith in the Torah (Old Testament) reads:
(Deuteronomy 6.4-5) Hear, O” Israel : the Lord our God, the Lord is One
The Testimony given in the Quran affirms the same truth:
(Quran 3.18) God bears witness that there is no god but He, and so do the angels and those who possess knowledge.
The correct Testimony has no name in it except the name of God.