The Law Code of Nārada v14.2

Nāradasmṛti v14.2

tat punas trividhaṃ jñeyaṃ prathamaṃ madhyamaṃ tathā /
uttamaṃ ceti śāstreṣu tasyoktaṃ lakṣaṇaṃ pṛthak //