How could you say that the meaning of tahleel is recitation 1st kalima?

Tahleel and the first Kalima are not the same thing. Tahleel is the declaration of faith in Islam, which states: "There is no god but Allah, and Muhammad is the messenger of Allah." The first Kalima is one of the six Kalima in Islam, and it states: "There is no god but Allah." Therefore, it is incorrect to say that the meaning of tahleel is recitation 1st kalima.