ललितोपाख्याने जप-न्यास-योगप्रकरणम्
Lalitopākhyāna: Procedure of Japa, Nyāsa, and Yogic Installation
पञ्चाक्षरी तु षड्वर्गी त्रिवर्णो नवमो मतः / ब्रह्मा विष्णुश्च रुद्रश्च धनेशेन्द्रयमाः क्रमात्
pañcākṣarī tu ṣaḍvargī trivarṇo navamo mataḥ / brahmā viṣṇuśca rudraśca dhaneśendrayamāḥ kramāt
The five-letter group forms six vargas, while the ninth is held to be of three letters. In order they are: Brahmā, Viṣṇu, Rudra, Dhaneśa (Kubera), Indra, and Yama.