Themeforest Regular license allows the use of multisite for a one domain?

My client wants to use the theme in their branches that are in the same domain,
The branches are under subdomains of the same domain, where you have installed the multisite, we can use the regular license?

Hi there!

When you purchase, for example a theme from ThemeForest it can only be used on one domain. If you want to use the theme on a second domain, then you must purchase a new license, and so on for each domain.

1 license per domain

More details here.

All the best