Dīkṣā-bhedaḥ (Types of Initiation) — Lalitopākhyāna: Hayagrīva–Agastya Dialogue
इति श्रीब्रह्माण्डमहापुराणे उत्तरभागे ललितोपाख्याने हयग्रीवागस्त्यसम्वादे द्वाचत्वारिंशो ऽध्यायः अगस्त्य उवाच अश्वानन महाप्राज्ञ करुणामृतवारिधे / श्रीदेवीदर्शने दीक्षा यादृशी तां निवेदय
iti śrībrahmāṇḍamahāpurāṇe uttarabhāge lalitopākhyāne hayagrīvāgastyasamvāde dvācatvāriṃśo 'dhyāyaḥ agastya uvāca aśvānana mahāprājña karuṇāmṛtavāridhe / śrīdevīdarśane dīkṣā yādṛśī tāṃ nivedaya
Thus, in the Śrī Brahmāṇḍa Mahāpurāṇa, in the latter section, in the Lalitā-upākhyāna, in the dialogue of Hayagrīva and Agastya, the forty-second chapter. Agastya spoke: “O Aśvānana, great sage, ocean of compassion’s amṛta, declare to me what manner of dīkṣā leads to the darśana of Śrī Devī.”