Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 3 · Name Letters and Chakras
युद्धजयार्णवः (चक्राणि)
परसैन्यं(न्ये) शृणु भङ्गं प्रयोगेण पुनर्वदे ।श्मशानाङ्गारमादाय विष्ठां चोलूककाकयोः ॥ १६ ॥
In the full Agni Purana this is chapter 133, verse 16.
Now hear about breaking the enemy's army by a rite. I will tell it again. Take charcoal from a cremation ground and the droppings of an owl and a crow.
Simple meaning: This is a rite to break the enemy army. Take cremation-ground charcoal and owl and crow droppings.
कर्पटे प्रतिमां लिख्य साध्यस्यैवाक्षरं यथा ।
Draw a figure on cloth, with the target's name in it. Write the enemy's name nine times.
मूर्ध्नि वक्त्रे ललाटे च हृदये गुह्यपादयोः ।
Write the name nine times on the nine places of the figure, from head to feet.
मोटयेद्युद्धकाले तु उच्चरित्वा(समुच्चार्य) तु विद्यया ।
Crush the figure at battle time after the spell. Next comes the Tarkshya chakra for victory.