Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 1 · Muhurta: Marriage, Home, Farming
ज्योतिःशास्त्रम्
यश्च यस्य यदा दूष्यः स तं यत्नेन पूजयेत् ।ब्रह्मणैषां वरो दत्तः पूजिताः पूजितस्य च ॥ ११ ॥
In the full Agni Purana this is chapter 164, verse 13.
One who is troubled by a planet at a given time should worship that planet with care. Brahma gave these planets a boon: when worshipped, they honour the one who worshipped them.
Simple meaning: If a planet troubles you, worship it with care. Worshipped planets favour the worshipper.
ग्रहाधीना नरेन्द्राणामुच्छ्रयाः पतनानि च ।
Kings rise and fall by the planets, so the planets deserve worship.
वारव्रतानि वक्ष्यामि भुक्तिमुक्तिप्रदानि हि ।
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.