I read recently, from a not-so-great source, that in the first hours of Germanys invasion of the Soviet Union that Stalin was hesitant to mount a full scale defense. The source goes on to state that Stalin was so confident that Hitler would uphold his end of the Molotov-Ribbentrop pact that he was convinced that the attacking forces were German generals gone rogue, thus causing Stalin to hesitate in case the invasion had been initiated with-out Hitlers consent. Is this true? Was Stalin really so sure of Hitler that he waited to fully push back? If this has already been answered I apologize and would appreciate a link to said answer.
A couple of prior answers may be pertinent , though they focus on the period prior
/u/crueldwarf points out that it is a mistake to reduce all decisions solely to Stalin's responsibility and to think that intelligence reports pre-war were accurate; they weren't and this influenced the decisions in the run up to the war and the trust in the information. the intelligence reports mostly pointed to preparations against the near east rather than russia and also had errors in overall troops and buildup
/u/sgtbanzai points out similarly that no one knew when.