एकभुक्तं च नक्तं च तथैवायाचितं नृप । उपवासं तथा दानं ब्राह्मणानां च भोजनम्
ekabhuktaṃ ca naktaṃ ca tathaivāyācitaṃ nṛpa | upavāsaṃ tathā dānaṃ brāhmaṇānāṃ ca bhojanam
O king, let him observe the discipline of a single meal, and likewise eating only at night (in the evening), and living on food not begged for; also fasting, giving charity, and feeding the Brāhmaṇas.
Narrator of the Revā Khaṇḍa (deduced)
Tirtha: Revā/Narmadā tīrtha observance (contextual)
Type: ghat
Listener: nṛpa (king) addressed; also Pārtha in adjacent verses
Scene: Pilgrims at a riverbank āśrama: one eats a single simple meal, another waits until evening (nakta), a mendicant receives unsolicited alms; nearby, a dāna scene and a line of Brahmins being respectfully fed.
Sacred travel is paired with ethical austerity and generosity—self-restraint plus support of dharma through dāna and hospitality.
The vrata is being prescribed for the Narmadā tīrtha context, specifically Cakratīrtha in this adhyāya.
Ekabhukta, nakta, ayācita living, upavāsa (fasting), dāna (charity), and feeding Brahmins.