Praise be to Allah, the Lord of the Worlds, to Him belong the endowments and proper commendations. May Allah increase the honor of Prophet Muhammad, sallallahu ^alayhi wa sallam, raise his rank, and protect his nation from what he fears for it. Thereafter:
It is obligatory upon the accountable persons to embrace the Religion of Islam, to remain steadfast to it, and to comply with what is obligatory upon them of its rules, i.e., every accountable person must be Muslim, stay Muslim, and follow the rules of Islam. Among what one must know, believe in, and utter immediately if one was a blasphemer, or else in the prayer, is the Testification of Faith, which is:
“Ash-hadu Alla Ilaha Illallah, Wa Ash-hadu Anna Muhammad-ar-Rasulullah”
sallallahu ^alayhi wa sallam.
The meaning of Ash-hadu Alla Ilaha Illallah is: "I know, I believe, and I declare that nothing deserves to be worshipped except Allah, Who is One (Wahid), Indivisible ('Ahad), without a beginning ('Awwal), Eternal (Qadim), Alive (Hayy), without an end (Qayyum), Everlasting (Da'im), the Creator (Khaliq), the Sustainer (Raziq), Knowledgeable (^Alim), Powerful (Qadir), the One Who does whatever He wills:
“ Ma Sha’Allahu Kan, Wa ma lam yasha’ lam yakun.”
Which means: whatever Allah willed to be shall be and whatever Allah did not will to be shall not be, the One Who without His protection no one can evade sinning, and without His help no one has the strength to obey Him:
“ La Hawla wa la Quwwata Illa Billah.”
The One who is attributed with all proper perfection and is clear of all imperfection:
<< Laysa Kamithlihi shay’un, wa Huw-as-Sami^-ul-Basir >>
Which means: There is nothing like Him, and He is attributed with Hearing and Sight.
And Allah knows best.