Do you know WikiIslam ?

[viocjit]

If we interpret it literally. It said Adam was made with clay.

And there is nothing wrong with this interpretation. Look up 'clay minerals and the origin of life' and you will get extensive literature related to this subject.

Evolution theory prove there was not a first human because they were first humans of both sex appearing at the same time.

There obviously was a first homo sapien since homo sapiens didn't exist forever. You have this famous axiom in mathematics called the well-ordering principle : any finite set of natural numbers has a minimal element, and the axiom is shown to be equivalent to mathematical induction.

The set of homo sapiens can be assigned to natural numbers (say, by numbering their birthdays in chronological order) which means that there was, necessarily, mathematically, a first homo sapien.

How can we be sure chain of narrators wasn't forged ?
How can we be sure not any hadith was forged ?
Do we have a book of ahadith dating back from Muhammad era ?

The first known hadith compilation document was authored by 'Abd Allah ibn 'Amr ibn al-'As, who was born 60 years after the prophet PBUH's death. Before that, oral tradition was the most widespread means of preserving the prophet's sayings.

There is an entire discipline called hadith studies that specializes in evaluating the chain of narrators and the authenticity of hadiths.
https://en.wikipedia.org/wiki/Hadith_studies

It's a very broad subject and it's difficult to summarize it in a short post.

I think you seriously need to study evolution theory because there wasn't a first homo sapiens as you claim.

For ahadith between oral tradition and the preserving of these with writing.
There are a lapse of time.

If Ahmed told a thing to Bilal (Youngest brother of Ahmed).
Bilal can involuntary deform what said Ahmed to him when he will speak to Tahseen (Wife of Bilal).
Tahseen will report Bilal sayings to Jamila (Oldest sister of Tahseen) without deform these but she will use others words with the same meaning.
Jamila will tell the sayings to another one and deforming these involuntary etc...

If you tell a thing to Andrew and tell the same thing to Beckie some years after your talk with Andrew.
You won't use the same words even if they had the same meanings.
What you will tell to each of them can be a bit different if you give more details to Beckie.
What you will tell to each of them will be a bit different if you say they were between 5 to 10 men to Andrew and between 6 to 15 men to Beckie.
Therefore they will tell a different story if they report what you said to them.

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Wikislam?

Is that another Space Jam movie?

You have humor.