If we are going to coping some article from other author then we should responsible to ask him for permission. Then he should tell that i have taken this artiicle from other source(like in u'r case MSDN) then i have to go MSDN' responsible person to ask for permission.

suppose the article(suppose A) which is copied from MSDN that person is responsible i.e. means he may be wrong or have taken permission from msdn.
But this article(by pradeep suppose B) copied from article A or may be from msdn. In both cases it's duplicate of msdn or that article. In both case it's illegal.