The usual English title of Hesiod’s ancient poem containing the fullest Pandora story is Works and Days. The poem combines advice about farming and justice with myths explaining the human condition, including the story of Pandora and the jar.
Works and Days is one of the two major poems traditionally attributed to Hesiod, the other being Theogony. Its Pandora passage describes Zeus’s response to Prometheus’s theft of fire and explains how troubles entered human life. It also names the remaining presence as elpis, usually translated as hope.
The poem is not a narrative epic devoted exclusively to Pandora. The myth appears within a broader work concerned with labor, morality, agriculture, and relations between humans and the gods. This is why identifying the source as Works and Days is more precise than simply naming Hesiod or Theogony.