Tsarevitch Ivan, the Firebird and the Gray Wolf

"Tsarevich Ivan, the Firebird and the Gray Wolf" (Russian: Сказка об Иване-царевиче, жар-птице и о сером волке) is a Russian fairy tale collected by Alexander Afanasyev in Russian Fairy Tales. It is Aarne-Thompson type 550, the quest for the golden bird/firebird.