ललितोपाख्याने जप-न्यास-योगप्रकरणम्
Lalitopākhyāna: Procedure of Japa, Nyāsa, and Yogic Installation
अंशाद्यानन्द्यमूर्त्यन्तं मन्त्रैस्तु व्यापकं चरेत् / चक्रेश्वरीं चक्रसमर्पणमन्त्रान्हृदि न्यसेत्
aṃśādyānandyamūrtyantaṃ mantraistu vyāpakaṃ caret / cakreśvarīṃ cakrasamarpaṇamantrānhṛdi nyaset
From “aṃśa” up to “ānandyamūrti”, one should perform the all-pervading rite (vyāpaka) with mantras. And one should place Cakreśvarī and the mantras of offering the cakra within the heart.