Certificate of singleness should be from your country... after you get it, you should translate it to arabic. for that you need first to take it to your embassy to stamp it (validate it), then to ministry of foreign affairs (near Al Bustan hotel) to stamp it again, then take it for arabic translation in any of the translation centres in sofitel.

Hope this is helpful, if you need further details let me know coz i have been through all this..