Praise be to Allaah and blessings and peace be upon His Messenger and Chosen Prophet.

Tawheed in Arabic means attributing Oneness to Allaah and describing Him as being One and Unique, with no partner or peer in His Essence and Attributes.

The Arabs say waahid, ahad and waheed, all meaning one. Allaah is Waahid, meaning that He has no rivals or peers in any way. So Tawheed means knowing Allaah is One, with none like unto Him. Whoever does not acknowledge Allaah in these terms and does not describe Him as being One with no partner or associate does not believe in Tawheed.

With regard to the shar’i definition of Tawheed, it means believing in Allaah alone as God and Lord and attributing to Him alone all the attributes of Lordship and divinity.

It may be defined as follows: Believing that Allaah is One with no partner or associate in His Lordship (ruboobiyyah), divinity (uloohiyyah) or names and attributes (al-asma’ wa’l-sifaat).

This word (Tawheed) and its derivatives are used with this meaning in the Qur’aan and Sunnah. For example:

Allaah says (interpretation of the meaning):

“Say (O Muhammad): He is Allaah, (the) One [Ahad].

2. Allaah‑us‑Samad [Allaah — the Self‑Sufficient Master, Whom all creatures need, (He neither eats nor drinks)].

3. He begets not, nor was He begotten.

4. And there is none co‑equal or comparable unto Him”

[al-Ikhlaas 112:1-3]

“And your Ilaah (God) is One Ilaah [ilaahun waahidun] (God — Allaah), Laa Ilaaha illa Huwa (there is none who has the right to be worshipped but He), the Most Gracious, the Most Merciful”