Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 2 · War Astrology: Yogas, Nakshatras
युद्धजयार्णवः (योगाः नक्षत्राणि)
अष्टाविंशाल्लिखे(?)द्बिन्दून्पुनर्भाज्यास्त्रिभिस्त्रिभिः ।अथ ऋक्षाणि चत्वारि रेखास्तत्रैव दापयेत् ॥
In the full Agni Purana this is chapter 126, verse 6.
Write twenty-eight dots. Then divide them again, three by three. Then draw lines there for four nakshatras (stars). (Our text is unclear here: the print puts a question mark on the word 'write'.)
Simple meaning: Draw twenty-eight dots, group them in threes, and draw lines for four nakshatras.
यस्मिन्नृक्षे स्थितो राहुस्तदृक्षं फणिमूर्धनि ।
Rahu's nakshatra goes on the snake's head. The other nakshatras follow in order, twenty-seven in all.
वक्त्रे सप्तगत ऋक्षे म्रियते सर्व आहवे ।
A star among the seven on the snake's mouth can mean death in battle; on the shoulder, defeat.
उदरस्थेन पूजा च जयश्चैवाऽऽत्मनस्तथा ।
Belly brings honour and victory. Waist helps a fighter overpower the enemy in battle.