Hoi mel_n, ik kom ook uit Nederland!
Ok, back to English.

There is no minimum required income for spousal sponsorships! None. Whatsoever. As long as the sponsor is not on welfare for reasons other than disability, you're good.
My husband is a student. The application said he needed a letter from his employer saying when he got hired, how much he made and how many hours he worked, if he was employed. Since hubby is a student, and student is NOT the same as unemployed, we called CIC about it, and they suggested we substituted the employment letter with proof from his university that he is a student.
The application also said he needed his option C printout, which you need to order from Revenue Canada. Takes about 10 work days, usually less but don't bet on it. It has a lot of information on it, like whether the sponsor is on welfare other than for disability (which will be a problem if they are).
As far as I recall it didn't say anything about payment stubs, neither for him nor for me. It makes sense too:
For the sponsor, the option C printout will say it all and more. For the sponsored person, well (s)he will have to quit his/her job in order to come to Canada anyway, so I don't see whether it would matter.
Hi Indigo! thanks for your reply. Well here is my case... I am a canadian citizen, but haven't actually lived ever in Canada, I was born there.
So I don't have the option C printout as I don't have financial history in Canada.
So I want to send bank statements and the last paystubs I got from my job. The thing is the company I worked for, went bankrupt this october, my contract was going to end anyways this same month, so I recently became unemployed, but I need to show them that at least I earned and saved money (and want to send as well my husbands bank statements to backup that we have enough money to support ourselves while we search for a job in when in Canada).
The other turn, is that the company owes me almost 2 months.. so I had to register in the UWV, the organism that provides the government benefits for them to pay me what the company still owes me... and I also asked for the uitkering while I look for a job to have income to wait for the application to be processed... and now I don't know if that will be a problem. Although it is not the Canadian government paying this welfare and I have never ever before asked for a benefit, but it is still welfare..
I am filled with many doubts about this, and berlin embassy is not answering my emails anymore...
thanks!