Mahabharata — Anushasana Parva, Shloka 154
Pitṛ-śrāddha-haviḥ-phala-nirdeśa
Offerings for Ancestors and Their Stated Results
आदित्योदयसम्प्राप्ते विधिमन्त्रपुरस्कृतम् । ददाति काज्चन यो वै दुःस्वप्रं प्रतिहन्ति सः,जो सूर्योदय-कालमें विधिपूर्वक मन्त्र पढ़कर सुवर्णका दान करता है, वह अपने पाप और दुःस्वप्रको नष्ट कर डालता है
ādityodayasamprāpte vidhimantrapuraskṛtam | dadāti kāñcanaṃ yo vai duḥsvapnaṃ pratihanti saḥ ||
婆悉吒说道：在日出之时，若有人依所规定的仪轨，先诵持神圣真言而后施与黄金，此人便能禳除恶梦，并由此消解与之相连的不祥与业垢。此教诲将守法、应时的布施，与内在净化及避除凶兆相系。
वसिष्ठ उवाच
Educational Q&A
Timely, rule-guided charity—specifically giving gold at sunrise with mantras—serves as a dharmic act that dispels inauspiciousness (symbolized by evil dreams) and supports moral and spiritual purification.
Vasiṣṭha is instructing about the fruits of specific dāna-rites: he prescribes a sunrise-time gift of gold, performed according to ritual procedure and accompanied by mantras, and states its protective effect against bad dreams and ill-omens.