"I believe in ALLAH, in His Angels, His Scriptures, His Prophets, the Day of Judgment, and in the fact that every thing good or bad (in the world) is pre-destined by ALLAH the Exalted, and in the resurrection after death."
The Existence is Infinite and ALLAH has encircled the Infinite Existence, and the Infinite existence has encircled all existent things, so there is no possibility of any other god beyond ALLAH. The existence of creatures is very weak before the Existence of ALLAH. When we and you cannot allow any other being to enter into our own limits of existence despite such weakness, then how ALLAH, with such a tremendous strength of existence, can allow any other god to enter into ALLAH's dominion ? In short, there is no space for any other god to enter the Divine Dominion. As such there is no rational possibility to believe in any other god beyond ALLAH. ALLAH is the origin of all creatures. He is alone the Master of all creations, man, angel, jinn etc. All creatures are the slaves and servants of ALLAH, the Lord of the Universe. So it is incumbent on every soul in the great Universe to recognize and acknowledge the Lordship of ALLAH, His Divine Unity and denounce all quarters of polytheism. He is free from all Sins, and never forgets any thing. But Shia don't believe in these supreme qualities of ALLAH. They implore and make supplication to ALLAH's slaves and worshippers rather than to Him alone, saying "O Ali! and "O Hussain!" and "O Zainab!" Similarly they make vows and sacrifice beasts in the name of others besides ALLAH. They request the dead to fulfill their needs as is shown by their prayers and poems. They consider their Imams to be infallible, to have knowledge of the unseen, and to partake In the administration of the universe. It is the Shia's who Invented Sufism (mysticism) to consecrate their deviated tenets and thus give them the air of legitimacy They claimed that there is special power and authority invested in the "Auliya" (mystic saints), "Aqtaab" (those considered to be the spiritual axes of the universe, which turns due to their exalted status), and Ahl-e-Bayt Shia's scholars and clergy impressed upon their followers the concept of a hereditary privileged class, as a matter of religion, although this has no foundation in Islam at all. Knowledge of ALLAH, is attained, according to them, through the exercise of reason, not by knowledge of divinely revealed law. That which came to us by way of revelation in the Quran merely represents an affirmation of reason's judgment, it is not considered to be a source which is independent of, and beyond the limits of reason (naozuBILLAH). The Shia's believe that to see ALLAH is not possible in this world nor in the Hereafter.
Belief of a Shia for Tauheed of ALLAH is:
1. "Bad'ah" ; ALLAH tells a lie. (Asool Kaafi, Vol. No.1, Page No. 148. A Shia doctrine.)
2. "Iman and Kufr"; Our obedience is Iman and our disobedience is infidelity, said by Imam Baqar. (Al-Shafi, translation of Asool Kaafi, Vol. No.2, Page No. 33)
3. "Refusal of Kalma Tayyibah". (Al-Shafi, translation of Asool Kaafi, Vol. No.2, Page No. 41)
4. Ali and Hasan, their obedience is obligatory. ; (Al-Shafi, translation of Asool Kaafi, Vol. No. 2, Page No. 42)
5. "Denial of the fundamental principle of Islam". (Al-Shafi, translation of Asool Kaafi, Vol. No. 2, Page No.30)
6. "Difference between ALLAH and Ali". (Jila-ul-Ayoun, Vol. No. 2, Page No. 66)
7. Ali is God. (Jila-ul-Ayoun, Vol. No. 2, Page No. 66)
8. Imams are God. (Jila-ul-Ayoun, Vol. No. 2, Page No. 85)
9. "Denial of Tauheed". (Hayat-ul-Quloob, Vol. No. 3, Page No. 233)
10. Abdullah Ibn-e-Saba maintained the indispensability of Imamat and claimed that Ali was the true lord. (Anwaar-e-Naumania, Vol. No. 2, Page No. 234)
11. We neither accept that God nor Prophet whose successor is Abu Bakr. (Anwaar-e-Naumania, Vol. No. 2, Page No. 278)
12. "Fourteen self created Gods of Shia". (Chawdah Sitaray, Page No. 2)
13. "A declaration of Ali's divine attributes". (Basair-ud-Darajat, Page No. 22)
14. "Possession of divine attributes by Imam". (Basair-ud-Darajat, Page No. 23)
15. "An acceptance of self created Kalma and insult of angels". (Riaz-ul-Masaib, Page No. 78)
16. "An acceptance of separate Kalma". (Asool-e-Shariat Fee Aqaid-ul-Shia't, Page No. 423)
17. "Explanation of self created Kalma". (Shia Mazhab Haq Hai, Page No. 325)
18. "An acceptance of alteration in the Kalma Tayyibah". (Shia Mazhab Haq Hai, Vol. No. 2, Page No. 57)
19. To ask for help from Ali is not a polytheism but a way of the Holy Prophet (s.a.w)". ( Hathi Kay Daant Khanay Kay Aur Dikhanay Kay Aur, Vol. No.2, Page No. 41)
20. Kalma Tayyibah without Ali Wali uLLAH is false. (Shia Mazhab Haq Hai, Page No. 2)
21. When God becomes happy, He talks in Persian, when He becomes annoyed, talks in Arabic. (Tareekh-ul-Islam, Page No. 163)