The PCT Applicant's Guide was recently updated to clarify that when entering the national phase in Canada, if the corresponding international application has not yet been published, a copy of the international application (including the request) must be submitted to the Canadian Intellectual Property Office (CIPO) at the time of entry into the national phase. A translation of these documents into English or French is also required.
If the corresponding international application has been published, then a copy of the international application need not be submitted to CIPO.
The Canadian Intellectual Property Office's section of the PCT Applicant's Guide can be found here: http://www.wipo.int/pct/guide/en/gdvol2/annexes/ca.pdf