From a dotnet solution how can I know what packages are installed from a package source?

I have a dotnet solution,where I had to associate multiple package sources. As an example:Now when I build the solution it installs the packages, but I want to know their package source origin after they are installed.What is the best way to do it?

I already tried to run a command like:

while((Get-Project -All | Get-Package).Length -gt 0) { Get-Project -All | Get-Package | Uninstall-Package }

which doesn't seem ideal because it removes the packages references for .csproj then I need to add them again in that file (I can just discard change since I use git)

Now I do a rebuild on the solution and if I uncheck all package sources it builds... Which is not my expected result because it shouldn't have any source to pull the packages.