स्नानोदकं वा संकल्पं गृहीत्वा पाययेन्नवम् । त्रिसप्तरात्रमध्ये च फलं कोशस्य निर्दिशेत्
snānodakaṃ vā saṃkalpaṃ gṛhītvā pāyayennavam | trisaptarātramadhye ca phalaṃ kośasya nirdiśet
Prenant l’eau du bain comme eau consacrée, ou bien recevant le saṅkalpa comme vœu solennel, qu’on offre une libation nouvelle. Et dans l’intervalle de trois fois sept nuits, qu’on proclame le fruit lié au kośa, le trésor.
Lomaharṣaṇa (Sūta) speaking to the sages (deduced from Māheśvarakhaṇḍa context)
Listener: Pāṇḍunandana
Scene: A priest prepares consecrated bath-water in a vessel; the vow-taker states saṅkalpa and drinks a fresh libation; a calendar/marking of nights indicates the 21-night period, after which the ‘kośa’ result is proclaimed in assembly.
Ritual power is anchored in purity and intention: consecrated water and firm saṅkalpa make offerings effective and dharmic results manifest in due time.
No named tīrtha appears in this verse; it presents a general ritual-and-governance guideline.
Using snāna-water or a formal saṅkalpa to make a fresh offering, with a stated time-window of 21 nights for the indicated result.