He only quoted the first part of the Shahada, he deliberately omitted the second part because Muhammed makes it very clear Jesus is not a supernatural being as is believed by the Christians.
Below is the complete Shahada the Muslims say to become a Muslim
"I bear witness that there is no god except Allah"
"And I bear witness that Muhammad is the messenger of Allah."
Kinda conveinient oversight , don't ya think ?
That is what Taqiyya is all about -- purposeful misinformation
which makes the whole statement alie !
And the "Father of All Lies" is who ....?