What are the official rulings for Exodia the Forbidden One in the game of Yu-Gi-Oh?

Exodia the Forbidden One is a powerful card in Yu-Gi-Oh that allows a player to instantly win the game if they have all five pieces in their hand. The official ruling is that if a player successfully gathers all five pieces of Exodia in their hand, they immediately win the game, regardless of the current game state.