I check in in my source code in the development branch against work items. All checkins are required to have an associated work item. So when I view history on the branch, I
I don't think there is any command exists for this. The bestway is to use the Track Changeset feature in TFS2010. Check this MSDN library for more details:
http://msdn.microsoft.com/en-us/library/dd405662.aspx
In Track Changeset view, you can right click the Branch where changes originated and Click Changeset details which will open up the changeset details window. Here, you can check the associated workitems with that changes.