Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 3 · Name Letters and Chakras
युद्धजयार्णवः (चक्राणि)
पूर्वे दले तथोंकारं स्वदक्षे चोत्तरे लिखेत् ।आग्नेय्यादौ च हूंकारदले षोडशके स्वरान् ॥ ४१ ॥
In the full Agni Purana this is chapter 133, verse 41.
In the east petal write Om. On its own right and on the north petal likewise. From the south-east onward, write Hum on the petals. On the sixteen petals, write the vowels.
Simple meaning: Write Om on the east petal, Hum on the next petals and the vowels on the sixteen petals.
चतुस्त्रिंशद्दले काद्यान्बाह्ये मन्त्रं च मृत्युजित् ।
Write the letters on thirty-four petals with the Mrityunjaya spell outside, on birch bark with rochana and saffron.
*कर्पूरचन्दनाभ्यां च श्वेतसूत्रेण वेष्टयेत् ।
Wrap the figure with white thread, cover it with wax and worship it on a pot.
यन्त्रस्य धारणाद्रोगाः शाम्यन्ति रिपवो मृतिः ।
Wearing the figure calms illness, enemies and death. The Bhelakhi spell comes next.