Narada Purana — Purva Bhaga, Shloka 8
Nirukta, Phonetic Variants, and Vedic Dhātu–Svara Taxonomy
सुप्तिङुपग्रहलिंगनराणां कालहलूचूस्वरकर्तृयडां च । व्यत्ययमिच्छति शास्रकृदेषां सोऽपि च सिद्ध्यति बाहुलकेन ॥ ८ ॥
suptiṅupagrahaliṃganarāṇāṃ kālahalūcūsvarakartṛyaḍāṃ ca | vyatyayamicchati śāsrakṛdeṣāṃ so'pi ca siddhyati bāhulakena || 8 ||
For items such as nominal case-endings (suP), verbal endings (tiṅ), prefixes (upagraha), gender and persons/agents, as well as tense (kāla), the letters ha, lu, cū, the accent (svara), the agent-doer (kartṛ), and the letter yaḍ—when the author of the grammatical śāstra intends a reversal or interchange among these, that too becomes established on the basis of common usage (bāhulaka).
Sanatkumara (teaching Narada in a Vedanga/śāstra context)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
FAQs
It frames śāstra as both rule-governed and usage-aware: disciplined learning (especially Vedāṅgas like Vyākaraṇa and Śikṣā) supports clarity in Vedic study, which in turn aids right understanding on the path of dharma and mokṣa.
Indirectly: accurate speech, chanting, and comprehension depend on grammar and accent; such correctness strengthens mantra-recitation and scriptural hearing (śravaṇa), which are foundational supports for sustained Viṣṇu-bhakti even when the verse itself is technical.
Vyākaraṇa and Śikṣā: it notes that grammatical authorities may allow substitutions and irregular forms, and that these can be accepted when backed by prevalent usage (bāhulaka), including matters of endings (suP/tiṅ) and Vedic accent (svara).