Article 94 United Nations Charter

Article 94 of the United Nations Charter is under Chapter XIV: The International Court of Justice

Article 94

1. Each Member of the United Nations undertakes to comply with the decision of the International Court of Justice in any case to which it is a party.
2. If any party to a case fails to perform the obligations incumbent upon it under a judgment rendered by the Court, the other party may have recourse to the Security Council, which may, if it deems necessary, make recommendations or decide upon measures to be taken to give effect to the judgment.

See also: Article 93 United Nations Charter