Paramparā of the Atharva Veda and Purāṇas; Definition of a Purāṇa
Daśa-lakṣaṇam
पुराणलक्षणं ब्रह्मन् ब्रह्मर्षिभिर्निरूपितम् । शृणुष्व बुद्धिमाश्रित्य वेदशास्त्रानुसारत: ॥ ८ ॥
purāṇa-lakṣaṇaṁ brahman brahmarṣibhir nirūpitam śṛṇuṣva buddhim āśritya veda-śāstrānusārataḥ
婆罗门啊,《普拉那》的特征已由诸位大梵仙依循吠陀圣典而加以阐明。请摄持慧心,专注聆听。
This verse introduces that the defining features of a Purāṇa were established by great sages, and Śukadeva will explain them in line with the Vedas and authorized śāstras.
Parīkṣit was hearing the Bhāgavatam for liberation at the end of life, and Śukadeva prepares him by grounding the discussion in recognized scriptural standards for what a Purāṇa is.
Study with discernment and humility—seeking explanations consistent with Vedic scripture and authentic tradition, rather than relying on speculation or isolated interpretations.