Shahadah
Shahada is the Muslim profession of the faith:
THERE IS NO GOD BUT ALLAH AND MOHAMMED (PBUH) IS HIS MESSENGER
This is genuine belief which includes all the articles of faith. The witnessing of the Oneness of Allah (SWT) is the rejection of any form of deity other than Allah (SWT), and the witnessing that Mohammed is His Messenger is the acceptance of him being chosen by Allah (SWT) to convey His message of Islam to all humanity and to deliver it from the darkness of ignorance into the light of belief in, and knowledge of, the Creator.
The statement of Shahada in arabic is:
Ashhadu Alla Ilaha Illa Allah (SWT) Wa Ashhadu Anna Mohammed Rasulu Allah (SWT)
An English translation would be:
I bear witness that there is no god but Allah (SWT) and I bear witness that Mohammed is His Messenger