To make this :

1) First make an app

2) Take app id from apps

3) Must give domain name and  app domain therescreenshot_44

4) Then public it via share and reviewscreenshot_44
Then use this code, always take a look redirect uri

<a target=’_blank’ href=”https://www.facebook.com/dialog/feed?app_id=1628397087404468&link=http%3A%2F%2Fwww.satradehub.org%2Findex.php%3Foption%3Dcom_acymailing%26ctrl%3Darchive%26task%3Dview%26mailid%3D192%26tmpl%3Dcomponent%26time%3D1432025035&picture=http://www.satradehub.org/images/fbshare.jpg&name=HUB Happenings May 2015&caption=HUB Happenings May 2015
&description=HUB Happenings May 2015.&redirect_uri=http://www.satradehub.org/app/1628397087404468″><img alt=”Facebook” src=”http://www.satradehub.org/media/com_acymailing//images/facebookshare.png” /></a>

Yahoo .. Task is done 🙂