Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 1 · Muhurta: Marriage, Home, Farming
ज्योतिःशास्त्रम्
वारव्रतानि वक्ष्यामि भुक्तिमुक्तिप्रदानि हि ।करः पुनर्वसुः सूर्ये स्नाने सर्वौषधी शुभा ॥ १ ॥
In the full Agni Purana this is chapter 195, verse 1.
I will tell the weekday vows that give enjoyment and freedom. On Sunday, Hasta or Punarvasu: all herbs are good for the bath.
Simple meaning: The weekday vows start here. On a Sunday in Hasta or Punarvasu, a bath with all herbs is good.
श्राद्धी चाऽऽदित्यवारे तु सप्तजन्मस्वरोगभाक् ।
A Sunday ancestor rite keeps illness away for seven births. A Sunday on a sankranti is good.
कृत्वा हस्ते सूर्यवारं नक्तेनाब्दं स सर्वभाक् ।
A Sunday vow in Hasta for a year gives everything. Seven Mondays in Chitra bring happiness.
स्वात्यां गृहीत्वा चाङ्गारं सप्तनक्त्यार्तिवर्जितः ।
Seven night meals on Mars's day in Svati free you of trouble. Seven on Mercury's day in Vishakha remove the planets' trouble.