I am the sponsor and I have no work because I need to take care the kids, and one kid is on the spectrum.
What I use to prove that I can support the living in Canada is to show the bank statement. Also, since PA currently is working in the own country, he is financially supporting the living for me and the kids here.
Here is the document I submitted to IRCC for proof of fund, hope can help
Proof of Funds
The sponsor is living in Canada with the 3 young kids, and since the 3.5-year-old son is diagnosed of Global Developmental Delay and Autism Spectrum Disorder. The sponsor needs to attend many lessons to help the son and take special care of him, that’s why the sponsor cannot go out to work now.
Currently the principal applicant is still working in own country and we have around CAD$ XX K savings in CIBC bank to support the daily life in Canada. Once the principal applicant is approved with the COPR, either the sponsor or the principal applicant can go out to find a job to support the livings of the family.