यदा त्वं सनकादिभ्यो येन रूपेण केशव ।
योगमादिष्टवानेतद् रूपमिच्छामि वेदितुम् ॥ १५ ॥
yadā tvaṁ sanakādibhyo
yena rūpeṇa keśava
yogam ādiṣṭavān etad
rūpam icchāmi veditum
śrī-uddhavaḥ uvāca — Śrī Uddhava said; yadā — when; tvam — You; sanaka-ādibhyaḥ — to Sanaka, etc.; yena — by which; rūpeṇa — form; keśava — my dear Keśava; yogam — the process of fixing the mind in the Absolute Truth; ādiṣṭavān — You have instructed; etat — that; rūpam — form; icchāmi — I desire; veditum — to know.
Śrī Uddhava said: My dear Keśava, at what time and in what form did You instruct the science of yoga to Sanaka and his brothers? I now desire to know about these things.