Mahabharata — Anushasana Parva, Shloka 9
दानशील-समाचारः, सत्कारः, अहिंसा च
Umā–Maheśvara Saṃvāda
अग्निकार्य ऋयहं कुर्यान्निराहार: समाहित: । ततः संवत्सरे पूर्णे प्रतिगृह्लन्ति देवता:
agnikāryam ṛjvahaṁ kuryān nirāhāraḥ samāhitaḥ | tataḥ saṁvatsare pūrṇe pratigṛhlanti devatāḥ ||
道吉耶说道：“当令其以不动摇的正直之心行火祭（阿耆尼仪），断食而摄心专注。待满一整年，诸天便受纳（供献与誓愿）。”
धौग्य उवाच
Educational Q&A
Ritual efficacy is tied to inner discipline: straightforward intent (ṛju-bhāva), fasting, and mental concentration sustained over time. The verse emphasizes that divine acceptance follows completed, steady observance rather than mere outward performance.
Dhaugya is prescribing a disciplined observance: performing the fire-rite while fasting and remaining mentally composed, continuing until a full year is completed; at that completion, the deities are said to accept the rite/vow.