What you're asking is like proof that I've made this comment

No. What I'm asking for is links or references to the material which you used to form your opinion. Not necessarily all of it but at least something which supports what you're saying. That's what's meant by the word "sources" in this context.

proof is you just need to observe the facts he uses

I'm asking you where I can observe his uses.

listen to his arguments

I'm asking you where I can listen to such arguments.