Our noblest duty is to strive to reduce oppression, to be more [stringent] in our implementation of Islamic law... and to weaken the control of oppressive and tyrannical regimes over the oppressed. These [actions] can [hasten] the return of the Hidden Imam...

The Doctrine of Mahdism: In the Ideological and Political Philosophy of Mahmoud Ahmadinejad and Ayatollah Mesbah-e Yazdi, PDF, May 31, 2007