Didn't come with power supply—should it have?

I couldn’t find a great category that fits my question but hopefully, someone can help. I just tried to sell my old sprinkler system but the guy asked for a power cord. I realized I used the existing power cord when installing my Rachio, as my Rachio didn’t provide a power supply. Can someone confirm it should have had a power cord or clarify if I’m missing something? Thanks in advance!

@kstenson - Yes, the Rachio Gen 2 and Gen 3 that I have both came with their own power adapter.

Thanks for the response. Wonder why mine didn’t have one. I kept the box and checked that it wasn’t hiding in there.