Which commandment is most famously altered to justify the pigs' actions?

The commandment that is most famously altered to justify the pigs' actions is that no animal shall sleep in beds. Initially, this commandment was set to ensure that all animals lived equally and did not adopt the behaviors and luxuries associated with humans, whom they overthrew. However, as the pigs grow more powerful and begin to indulge in the comforts of human life, they cleverly amend this commandment to "No animal shall sleep in beds with sheets."

This alteration serves to legitimize their behavior while maintaining a facade of following the original principles of Animalism. It highlights the theme of how those in power can manipulate language and rules to serve their interests, ultimately illustrating the broader critique of how totalitarian regimes distort ideology to retain control.