Tauheed (belief in the oneness of Allah):
The meaning of Tauheed is to believe in the Oneness of Allah, His being and His attributes. It is to believe and testify with absolute certainty that there is no other partner as such besides Allah, that there exists no other being as High and Exalted that He is, and also to believe in all the Attributes of Allah, and there can be none who can possess them.
If anyone, on the contrary, disagrees, holds a slight feeble believe in the above-said meaning of Tauheed or even holds a doubt in his heart, then he may be meandering around the abyss of Shirk. He may, or he may have already been fallen.
A Muslims belief may vary from a verbal agreement of Tauheed to the ones whose heart resides in the soul of the phrase Tauheed, thus indicating to them where their foot stand on the grounds of Imaan. Having said this, it is to be understood that Tauheed is the fundamental and rudimentary part of a Muslims life, without which there’s no point of one being called a Muslim.
The statement of Tauheed:‘la ilaaha illallah’
Tauheed has unanimously been divided into three categories by many scholars:
1) Tauheed-al-Ruboobiyyah (Oneness of Divine Lordship)
2) Tauheed-al-Uloohiyyah (Oneness of worship and devotion)
3) Tauheed-al-Asma wa’l-Sifaat (Oneness of the Divine Names and Attributes)
~Syed Mukhtar Razi~