Maybe this will help... It is written in the IMM3911e Appendix A Document Checklist for Immigrant
PROOF OF RELATIONSHIP TO SPONSOR
Provide originals: they will be returned to you once your application has been finalized.
If you are being sponsored by your parent, you must provide proof of the relationship such as:
• birth certificates,
• baptismal certificates or,
• other official documents naming your parents and showing all name changes, if applicable.
If you are being sponsored by your spouse, common-law or conjugal partner, you must send evidence of the relationship between you and your sponsor such as:
• wedding photos,
• proof that you are partners,
• letters between you and your sponsor,
• telephone bills showing contact,
• family photos, etc
• proof of your sponsor’s visits such as airline ticket coupons, boarding passes,
• copies of pages of your sponsor's passport showing entry/exit stamps,
• any other evidence of your relationship and communication.
If you are a common-law or conjugal partner, also provide;
• evidence that your relationship is genuine and continuing,
• has existed for at least 12 months prior to your application,
• details of the history of your relationship,
• at least two statutory declarations from individuals with personal knowledge of your
relationship supporting your claim that the relationship is genuine and continuing,
• any other evidence of your relationship and communication.
If the sponsor is a permanent resident of Canada, you must provide a copy of his/her Immigrant or Permanent Resident Visa or Card. Residents of Iran must also provide a copy of sponsor’s “Shenas Nameh”.
Note: Photos must be loose. Do not send them in binders, albums, frames or other such
containers. Do not send video discs or video cassettes. Do not send musical greeting
cards or other similar documents containing electronic or mechanical devices