Not possible to create a sparsebundle image on a SMB mounted Volume
To use sparsebundles and Time Machine backups, a NAS must support AFP and one must mount the share using the AFP protocol. AFP supports metadata transport that is not carried via SMB shares. CIF/SMB should be used with Windows-based systems. AFP should be used with Apple systems whenever possible.

While you might be able to create a sparsebundle and use it under SMB, I can see no reason for doing so. When you're using OS X, you're best served by using AFP.