The books and letters written by Bahá'u'lláh cover religious doctrine, the proclamation of his claims, social and moral teachings as well as Bahá'í laws; he also wrote many prayers.
巴哈欧拉著作的范围涵盖了在宗教的教义、他的主张、社会和道德方面的教导以及巴哈伊律法；他还写作了很多祈祷文。