Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 2 · War Astrology: Yogas, Nakshatras
युद्धजयार्णवः (योगाः नक्षत्राणि)
वक्त्रे सप्तगत ऋक्षे म्रियते सर्व आहवे ।स्कन्धे भङ्गं विजानीयात्सप्तभेषु च मध्यतः ॥ ८ ॥
In the full Agni Purana this is chapter 126, verse 8.
When the nakshatra (star) falls among the seven on the mouth, everyone dies in battle. On the shoulder, know there is defeat. So too among the seven in the middle.
Simple meaning: 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.
पुच्छस्थितेन कीर्तिः स्याद्राहुदृष्टे च भे मृतिः ।
Tail brings fame. A nakshatra that Rahu looks at can bring death.
रविः शुक्रो बुधश्चैव सोमः सौरिर्गुरुस्तथा ।
Eight planets share the day in turns, each for about an hour and a half.