Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 2 · War Astrology: Yogas, Nakshatras
युद्धजयार्णवः (योगाः नक्षत्राणि)
आग्नेयादि शिवान्तं च पूर्णिमामादितः प्रिये ।पूर्वे कृष्णाष्टमीं यावद्राहुदृष्टौ जयो भवेत् ॥ ३६ ॥
In the full Agni Purana this is chapter 125, verse 36.
From the south-east up to the north-east, starting from the full moon, dear. In the east, until the dark eighth, when Rahu looks, there is victory.
Simple meaning: From the full moon on, Rahu moves through the directions, and his look brings victory.
ऐशान्याग्नेयनैर्ऋत्यवायव्ये फणिराहुकः ।
Snake Rahu sits in the corner directions. Death comes where the Sun is in front.
तृतीया कृष्णपक्षे तु सप्तमी दशमी तथा ।
Moon days named: 3rd, 7th, 10th, 14th of the dark half; 4th and 11th of the bright half.
पञ्चदशी विष्टयः स्युः पूर्णिमाऽऽग्नेयवायवे ।
More bad moon days are named. Letter groups are matched with the planets, starting from the Sun.