Rules: User creates content of of custom field

I am planning to create a custom Rules action that will do the following:

1. Specific user(UserX) to create a content of content type(Custom123)
2. Custom123 should contain field--a link for the newly created ContentXYZ.

Rules event and condition:

Event: When a new content is created

Condition: Node is of type: CustomXYZ

Any hint/help about how to achieve the Rules action is greatly appreciated.