The first level
The first lesson 1️⃣
Asalaam Alaikum (peace be upon you) my dear brothers, I hope that you are well. 

So that one enters Islam, he/she should say the testimony of oneness of Allah. Today inshallah (if Allah wills), we will explain the first part of the testimony, namely "La ilah ila Allah" (there is no god, but Allah).
The meaning of "La ilah ila Allah" ☝️
It means that there is no true God worthy of worship except, Allah.

♦️ The first part of this sentence(la ilah )is a negation. It means negating the goodness of anyone other than Allah.

➡️ A lot of people worshiped idols and other false gods, but all of that is wrong. 

➡️ Actually, there is no clergy to whom people should admit their sins and guilt in order to take forgiveness.

➡️ muslim pray and worship Allah directly without an intermediary.

➡️ we also refuse all mythical practices like astrology, palmistry and incantations.

♦️ the second part of the sentence "ila Allah"(but Allah) is proving.

It assures goodness for Allah alone.

It is mentioned in the Quran that everything people worship other than Allah doesn't deserve to be worshiped. They can't benefit nor harm themselves.

 Allah says in surah al-Furqan verse no(3){Yet they have taken besides Him other aliha (gods) that created nothing but are themselves created, and possess neither hurt nor benefit for themselves, and possess no power (of causing)
death, nor (of giving) life, nor of raising the dead.}

➡️Accordingly, the meaning of "la ilah ila Allah"(there is no god but Allah) is "there is no true God but, Allah " or "there is no god worthy of worship but, Allah".

➡️By Allah's grace we have finished the first lesson dear Brothers ☺️.

Tomorrow Inshallah, we will explain the second part of the testimony , the sentence of "wa an Muhammad Rasul Allah"( and Muhammad is the messenger of Allah)

Please, after studying the lesson well, solve this question:
Is the sentence of testimony (la ilah ila Allah) negation and confirmation?