Śrīcakra–Mantra–Pūjāvidhi: Agastya–Hayagrīva Saṃvāda
Lalitopākhyāna Context
इति श्रीब्रह्माण्डे महापुराणे उत्तरभागे हयग्रीवागस्त्यसंवादे ललितोपाख्याने चत्वारिंशो ऽध्यायः अगस्त्य उवाच कीदृशं यन्त्रमेतस्या मन्त्रोवा कीदृशो वरः / उपदेष्टा च कीदृक्स्याच्छिष्यो वा कीदृशः स्मृतः
iti śrībrahmāṇḍe mahāpurāṇe uttarabhāge hayagrīvāgastyasaṃvāde lalitopākhyāne catvāriṃśo 'dhyāyaḥ agastya uvāca kīdṛśaṃ yantrametasyā mantrovā kīdṛśo varaḥ / upadeṣṭā ca kīdṛksyācchiṣyo vā kīdṛśaḥ smṛtaḥ
Thus, in the holy Brahmāṇḍa Mahāpurāṇa, in the latter section, in the dialogue of Hayagrīva and Agastya, within the Lalitā narrative, begins the fortieth chapter. Agastya said: “What is the nature of Her yantra? What is the nature of Her mantra or boon? What should the instructor be like, and what kind of disciple is remembered as fit?”