The Śrīmad-Bhāgavatam is the science of Kṛṣṇa, the Absolute Personality of Godhead of whom we have preliminary information from the text of the Bhagavad-gītā. Śrī Caitanya Mahāprabhu has said that anyone, regardless of what he is, who is well versed in the science of Kṛṣṇa (Śrīmad-Bhāgavatam and Bhagavad-gītā) can become an authorized preacher or preceptor in the science of Kṛṣṇa.