Hi @Diarmuid_Sexton, if the link is nested inside of a dynamic list placed on a static page, it should allow you to link to the CMS detail page for the current dynamic item. I may not understand completely how you are using the link.
If you need to link to a dynamic page from a link outside of a dynamic list, then you would need to put in the path to the url using the external link type in link settings to link to the dynamic article by url path.
If you could provide a little more info how you are using the text link, it will help, perhaps a read-only link: http://help.webflow.com/faq/how-do-i-share-my-sites-read-only-link
The Rich Text may already be bound, but I would have to take a peek at the current settings. If it is easier for you, feel free to contact firstname.lastname@example.org.
Thanks in advance!