व्यासप्रसादाच्छ्रुतवानेतद्गुह्यमहं परम्।योगं योगेश्वरात्कृष्णात्साक्षात्कथयतः स्वयम्।।18.75।।
vyāsa-prasādāch chhrutavān etad guhyam ahaṁ param yogaṁ yogeśhvarāt kṛiṣhṇāt sākṣhāt kathayataḥ svayam
Through the grace of Vyasa, I have heard this supreme and most secret Yoga, directly from Krishna, the Lord of Yoga, Himself declaring it.