As Muslims we are all aware of the importance of 'Tawheed', as it is the first pillar of Islaam and the first article of iman, in fact, it is the greatest of them all, for the others merely follow on from it and are its offspring.

'Tawheed' is the single most important matter for which creation was created, Messengers were sent, books were revealed and upon which the correct path was built.

It is regrettable to find that many Muslims attach little importance and significance to Tawheed. While, they know about many aspect of Islaam but not really knowing what Tawheed is.

'Tawheed' is we testify that, 'there is no deity worthy of worship other than Allaah [La Ilaaha ilallaah] – so he negates the worship of other than Allaah and affirms it to Him only.'

Tawheed can be divided into three categories.

1. Tawheed ar-Ruboobeeyah (Monotheism of Lordship) - It is to single out Allaah in LORDSHIP, OWNERSHIP and singling out ALLAH ALONE as CREATOR, SUSUTAINER, DISPOSER, CHERISHER...
2. Tawheed al-Ibaadah (Monothiesm of Worship) - It is to single out Allaah the Glorified with worship, by not presenting any form of worship to anything other than Allaah or to seek closeness to anything else as one seeks closeness to Allaah .
3. Tawheed al-Asmaa-was-Sifaat (Monotheism in the Names and Attributes) - It is to single out Allaah the Majestic with His Names and Attributes that were mentioned in His Book or in the Sunnah of His Messenger by affirming what He Affirmed for Himself and negating what He negated for Himself without distorting them [Tahreef], nullifying their meanings [Ta’teel], delving into how they are [Takyeef], or comparing them with the creation [Tamtheel].

This is the religion that Allaah sent all His messengers with.

Taken from Parvez Shakir's Facebook page:
Worshippers Of ALLAH - THE ONE and ONLY.