His statement: "…and the word of sincerity" i.e: we have awakened upon the word of sincerity, that none is worthy of worship except Allah. This is that supreme and honorable word, which is the best of speech. Surely, it is the basis and foundation of this religion. The creation was created for the sake of living up to this word. Also, it is the purpose of sending the messengers and revealing the sacred books. It distinguishes between believers and disbelievers. It is the summary and conclusion of the call of the Messengers and the message they came with. Rather, it is the greatest blessing of Allah upon His servants.
And the statement "there is no god but Allah" is a word of sincerity and monotheism. It's a rejection of polytheism and a declaration of innocence from polytheists, Allah says: “And when Ibrahim said to his father and his people: Surely I am clear of what you worship save Him Who created me, for surely He will guide me. And he made it a word to continue in his posterity that they may return”.
A servant who wakes up in the morning, while following this word and never changed or exchanged, is in the best of conditions. Thus, due to the importance of starting the day with this statement, it has been encouraged to say it many times every day. This is done by granting a specific reward for the one that says it, either ten times in the morning or one hundred times.
And his statement: "…and upon the religion of our Prophet Mohammed (peace and blessings of Allah be upon him)”, ie: we have awakened upon this glorious religion, which Allah is pleased with for His servants as a religion and which, Prophet Mohammed (peace and blessings be upon him) was sent with.
Allah says: “This day have I perfected your religion for you, completed My favor upon you, and Have chosen for you Islam as your religion”. He also says: “Surely the (true) religion with Allah is Islam”, and says: “and whoever desires a religion other than Islam, it shall not be accepted from him, and in the hereafter he shall be one of the losers”.
This is the religion of the noble Prophet Mohammed (peace and blessings be upon him). It is to surrender to Allah with monotheism and obedience. Likewise, it constitutes disassociating oneself from polytheism and polytheists. Truly, it is a blessing of Allah for one to wake up following this amazing religion and straight path; for it is the path of those whom Allah is pleased with, not those who have earned His wrath or those who have gone astray.
Allah says, in mention of His servants on whom He granted His blessings, by this favor: "But Allah has endeared the faith to you and has beautified it in your hearts, and has made disbelief and lewdness and rebellion hateful unto you. Such are they who are the rightly guided." Allah also says: "And had it not been for the grace of Allah and His mercy unto you, and that Allah is Clement, Wise". Truly, this is the most noble of blessings one can receive.
Finally, his statement (peace and blessings be upon him): "…and upon the religion of our forefather Abraham, who was a Muslim, of true faith and was not of those who associate others with Allah." Meaning: I have woken up upon this blessed religion; the religion of Abraham the one close to the Most Merciful. That is, the religion of pure monotheism away from all forms of polytheism. This is also what is meant by being Muslim i.e. one who submits to Allah. It is a blessed religion and nobody leaves it except the one who wishes foolishness and to lead himself to error. Allah says: "And whoever forsakes the religion of Abraham, save him who befools himself? Verily, We chose him in the world, and lo! In the Hereafter he is among the righteous."