Dīkṣā-bhedaḥ (Types of Initiation) — Lalitopākhyāna: Hayagrīva–Agastya Dialogue
एवं दीक्षात्रयं कृत्वा विधेयं बौधयेत्पुनः / गुरुभक्तिस्सदाचारस्तद्द्रोहस्तत्र पातकम्
evaṃ dīkṣātrayaṃ kṛtvā vidheyaṃ baudhayetpunaḥ / gurubhaktissadācārastaddrohastatra pātakam
Thus, having performed the threefold initiation (dīkṣā), one should again be instructed in what must be done. Devotion to the Guru and right conduct are ever to be upheld; betrayal of him is a grave sin.