This is what my invitation said...
When you come to this appointment, you must bring with you:
this notice;
2 pieces of personal identification, one of which has your photograph and signature on it;
(e.g. driver's license, health card, Permanent Resident Card, etc.)
all your original documents that support your citizenship application (as listed in the document checklist in the citizenship application form);
Permanent Resident Card (if you have ever received one);
all original passports and travel documents in your possession (current and expired).
Mine is slightly different, they asked for Prohibitions form as well. Did you get a fingerprint request?
When you come to this appointment, you must bring with you:
This notice;
Prohibitions form (signed and completed)
2 pieces of personal identification, one of which has your photograph and signature on it; (e.g. driver's license, health card, Permanent Resident Card, etc.)
All your original documents that support your citizenship application (as listed in the document checklist in the citizenship application form);
Permanent Resident Card (if you have ever received one);
All original passports and travel documents in your possession (current and expired).