ये धूर्ता ये च दुर्वृत्ता ये चान्ये विजिगीषवः । तेषां कुटिलवृत्तीनामग्रे नैव वदेत्कथाम्
ye dhūrtā ye ca durvṛttā ye cānye vijigīṣavaḥ | teṣāṃ kuṭilavṛttīnāmagre naiva vadetkathām
Перед хитрецами, порочными и прочими, движимыми жаждой победы, не следует произносить священное повествование — тем более в присутствии людей с кривым нравом.
Narratorial Purāṇic voice (context not explicit in the snippet)
Scene: A narrator withholding the manuscript, gently turning away from a group of scheming, quarrelsome men; he instead moves toward a calm assembly of sādhus under a tree.
Sacred teaching should be offered in a receptive, dharmic environment; hostile or deceitful audiences undermine the sanctity and purpose of kathā.
None; the focus is on discernment regarding the audience.
A practical restriction: do not recite Purāṇa-kathā in front of deceitful or immoral people.