Eemaan (faith) in the Names and Attributes of Allaah is one of the pillars of faith in Allaah the Exalted, and
that consists of faith in the wujood (existence) of Allaah, faith in His ruboobiyyah (lordship), faith in His
uloohiyyah (divinity) and faith in His Names and Attributes.
So Tawheed of the Names and Attributes of Allaah is one of the three categories of Tawheed, they are:
Tawheedur-Ruboobiyyah, Tawheedul-Uloohiyyah and Tawheedul-Asmaa‘ was-Sifaat.
So the status of Tawheedul-Asmaa‘ was-Sifaat in the Religion is uppermost and of the utmost importance. It is not possible for anyone to worship Allaah in a complete way, until he has acquired knowledge of the Names and Attributes of Allaah the Exalted, in order to worship Him upon insight (baseerah). Allaah the Exalted said:
“And Allaah has Beautiful Names, so call upon Him by them.” [Sooratul-A’raaf 180].