Proofs From the Qur`aan
The proofs for the above are abundant, we shall mention some prominent ones. First, the very first chapter of the Qur`aan.
الْحَمْدُ للّهِ رَبِّ الْعَالَمِينَ
All the praises and thanks be to Allaah, the Lord of the worlds (mankind, jinns and all that exists). The Most Beneficent (full of mercy), the Merciful (to His servants). The Only Owner (and the Only Ruling Judge) of the Day of Recompense. You (Alone) we worship, and You (Alone) we ask for help (for each and everything)
In this verse we see affirmation of Allaah’s Ruboobiyyah, some of His Names, such as ar-Rahmaan, ar-Raheem, al-Maalik (the Owner), and a statement of Tawhid stating that He alone is worshipped and sought for aid.
Then we have the very last chapter of the Qur`aan:
Say: “I seek refuge with (Allaah) the Lord of mankind. The King of mankind. The Ilaah (deity) of mankind…” (An-Naas 114:3)
Here we have the Ruboobiyyah of Allaah, then a name al-Malik (the King) mentioned in another verse too, and then Uloohiyyah (the deity), and this is an indication of what constitutes Tawhid, of singling Him out as the Lord, as the only deity worthy of worship and in the Beautiful Names (and Lofty Attributes).
So we have the very first chapter, and the very last chapter incorporating the comprehensive Tawhid that is explained in detail in what is between them both of the rest of the Qur`aan.
Then there is the saying of Allaah, the Most High:
Lord of the heavens and the earth, and all that is between them, so worship Him (Alone) and be constant and patient in His worship. Do you know of any who is a namesake to Him (meaning one who deserves the like of His Name)? (Maryam 19:65)
So here we see Tawhid mentioned comprehensively, affirmation that He is the Lord of the heavens and the Earth (Ruboobiyyah), the command to worship Him alone and to be patient and steadfast upon that (Uloohiyyah), and the negation of there being any namesake for Him (His uniqueness in His Names and Attributes), and a namesake means one that deserves to have the same name (on account of having the same qualities). So again, we have the mention of Tawhid comprehensively. And then this is found often in the Qur`aan, and perhaps this is sufficient for our purposes here.
- Selected from: Concerning Faith (Eemaan) in Allaah Part I of II, by Abu Iyaad | Aqidah.com