Saving output of `bash --verbose` to a file

### Issue I want to troubleshoot problems with my bash environment, therefore I would like to study exactly which config files bash is opening and when. ### What I tried

bash --verbose | tee txt.tmp

^^^ this doesn't really work, as bash is creating a sub-shell inside the current one. ### PS I feel like the answer to this must be something extremely trivial, yet this is the first time I haven't been able to pipe terminal output to a file, so it strikes me, and I have no idea how I would do it differently!