UK sponsorship undertaking form

Do we have to have this on spouse visa application?can somebody please send me a link? pleaseeeee

http://www.ukba.homeoffice.gov.uk/sitecontent/applicationforms/visas/sponsorship-form.pdf

Here's the link... But I'm not sure if you need it.. I had that for my son not for myself when I applied our visa

That is interesting.
It wasn't required when my wife applied for her spousal visa a few years ago.
I included a letter then.

thanks adamchryss!! i am not sure too aposhark if its needed but better have it than sorry )

This form is not required.