Locating source files for arch linux executables

Is there a simple way to retrieve the source files that built a given /usr/bin/* command (meaning also those placed there via AUR)? Is there a command I can issue through maybe a pacman wrapper that would retrieve those files for me or is it mandatory that I google my way to a git page or maintainers page?

According to [this](https://askubuntu.com/questions/28372/how-do-i-get-and-modify-the-source-code-of-packages-installed-through-apt-get) question, I am looking for something similar to the apt-get source command from debian based distributions. Likewise, according to [this](https://stackoverflow.com/questions/4468447/how-to-download-source-code-with-pacman-on-arch-linux) question, asp (formerly abs) has the basis of this functionality with asp export for core packages though does not extend to those which have been built from AUR.

I would like to begin contributing to the community and simplifying the process of inspecting AUR source files would go a long way to helping me choose an appropriate package for my skill level and expertise as I will likely be doing this dozens if not hundreds of times before finding a package that both needs my help and that I am interested in / capable of helping.