Dīkṣā-bhedaḥ (Types of Initiation) — Lalitopākhyāna: Hayagrīva–Agastya Dialogue
दीक्षाणामपि सर्वासामियमेवोत्तमोत्तमा / आदौ कुर्यात्क्रियादीक्षां तत्प्रकारः प्रवक्ष्यते
dīkṣāṇāmapi sarvāsāmiyamevottamottamā / ādau kuryātkriyādīkṣāṃ tatprakāraḥ pravakṣyate
Among all initiations, this alone is the highest of the high. Yet first one should perform the ritual initiation (kriyā-dīkṣā); its procedure will be explained.