Ours is a just cause; victory will be ours!
Notes from Wikiquote
Speech at celebration meeting (6 November 1941). However, Stalin was quoting Vyacheslav Molotov's speech to the Soviet people of June 22, 1941. A facsimile of the draft of this speech is reprinted in the Russian journal _Istoricheskii Arkhiv_ No. 2, 1995, pp. 35-37. This quotation, in Molotov's handwriting, is on p. 37 of that issue.