Is prayer called 'imad al-din (the support of the religion), 'amud al-din (the pillar of the religion), or something else?

Prayer is the pillar of the religion, or its support, both terms conveying the same meaning. It is the foundation of Islam, without which it cannot stand. The religion has been likened to a tent, and prayer to its central pole, without which it cannot stand or be effective. Prayer may also be called faith (iman), as in the words of Allah Almighty: "And never would Allah have caused your faith to be lost" (Quran 2:143), which was revealed concerning those who died while praying towards Jerusalem. Prayer was called faith because it encompasses intention, utterance, and action.