Kitab-i-Iqan — Paragraph 39

The traditions established the fact that in all Dispensations the law of prayer hath constituted a fundamental element of the Revelation of all the Prophets of God—a law the form and the manner of which hath been adapted to the varying requirements of every age. Inasmuch as every subsequent Revelation hath abolished the manners, habits, and teachings that have been clearly, specifically, and firmly established by the former Dispensation, these have accordingly been symbolically expressed in terms of ‘sun’ and ‘moon’. “That He might prove you, which of you excel in deeds.”