This version and another can be found in the link below:
Some information for those who are mystified by Putin’s “Comrade Wolf” metaphor. Comrade Wolf comes from an old Soviet joke.
Rabinovich and his pet sheep are walking in the woods. Suddenly they fall into a deep pit. A minute later a wolf also falls into the same pit. The scared sheep starts bleating. “What do you mean – baa, baa, baa?” – says Rabinovich, “Comrade Wolf knows whom to eat”.
http://laurencejarvikonline.blogspot.com/2006/05/who-is-comrade-wolf.html