The first pillar: al-Shahadatayn (the twin testimony of faith):
This means that a person believes that Allah alone is the Lord, Sovereign and Controller, the Creator and Provider. He affirms all His most beautiful names and the sublime attributes that Allah has affirmed for Himself or that His Prophet affirmed for Him. He believes that Allah alone, and no one else, is the Only One Who is deserving of worship, as Allah says:
“He is the Originator of the heavens and the earth. How can He have children when He has no wife? He created all things and He is the All-Knower of everything.
Such is Allah, your Lord! Laa ilaaha illa Huwa (none has the right to be worshiped but He), the Creator of all things. So worship Him (Alone), and He is the Wakeel (Trustee, Disposer of affairs or Guardian) over all things”[al-An’aam 6:101-102]
And he believes that Allah sent His Messenger Muhammad (peace and blessings of Allah be upon him), and revealed to him the Qur’an, and commanded him to convey this religion to all of mankind. He believes that loving Allah and His Messenger and obeying them are duties which are obligatory upon all of mankind, and that love of Allah can only be realized by following His Messenger (peace and blessings of Allah be upon him):“Say (O Muhammad to mankind): ‘If you (really) love Allah, then follow me (i.e. accept Islamic Monotheism, follow the Qur’aan and the Sunnah), Allah will love you and forgive you your sins. And Allah is Oft-Forgiving, Most Merciful” [Aal ‘Imraan 3:31]