Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 2 · War Astrology: Yogas, Nakshatras
युद्धजयार्णवः (योगाः नक्षत्राणि)
अङ्गुष्ठादौ न्यसेदङ्गान्नेत्रमध्येऽथ देहके ।मृत्युंजयं ततः प्रार्च्य रणादौ विजयी भवेत् ॥ १९ ॥
In the full Agni Purana this is chapter 124, verse 19.
Place the limbs of the mantra, starting with the thumb, then between the eyes, then on the body. Then worship Mrityunjaya. At the start of a battle one wins.
Simple meaning: After placing the mantra limbs on the body and worshipping Mrityunjaya, one wins at the start of a battle.
शून्यो निरालयः शब्दः स्पर्शस्तिर्यङ्नतं स्पृशेत् ।
Sound, touch, form and water are each given a direction of movement.
सर्वस्थानविनिर्मुक्तो गन्धो मध्ये च मूलकम् ।
At the base of the navel stands a bulb with Shiva's form, and smell is free of every place.
शक्तिव्यूहेन सोमोऽर्को हरिस्तत्र व्यवास्थितः ।
The Moon, the Sun and Hari stand there, joined with the ten winds and the five subtle elements.