The Messenger of Allaah, sallAllaahu 'alayhe wa sallam said (what means in english):
"Whenever you pass by the grave of a disbeliever, give him glad tidings of
the Fire"
-aSilsilah aSaheehah (of Al-Albanee) # 18
the correct way to say it is "abshiroo binnaar"
http://www.salafitalk.net/st/viewmessages.cfm?Forum=6&Topic=11541
