ललितोपाख्याने जप-न्यास-योगप्रकरणम्
Lalitopākhyāna: Procedure of Japa, Nyāsa, and Yogic Installation
मातृकां मूलपुटितां न्यसेन्नाभ्यादिषु क्रमात् / बालाबीजानि तान्येव द्विरावृत्त्याथ विन्यसेत्
mātṛkāṃ mūlapuṭitāṃ nyasennābhyādiṣu kramāt / bālābījāni tānyeva dvirāvṛttyātha vinyaset
Let him place the Mātṛkā, enclosed in the root (mūla-puṭita), at the navel and the other stations in due order. Those very “Bālā” seed-syllables he should then arrange again, repeating them twice.