How do I report an unclaimed property payment that is from an old HSA account?

I recently claimed an unclaimed property, which was an old HSA account that I have forgotten about. They sent me the check with the full amount. I understand that I may get a 1099 before the next tax season. However, because this is funds from an HSA account, would I need to report the amount as a HSA distribution? Or will the 1099 (they may send) take care of that information for me?

 

I'm still under the retirement age, and still working, if that makes a different.

 

Also, am I able to put this back with my new HSA account without penalty?

 

Thanks in advance!