Verse 7

श्रृणु राम यथापूर्वं भूतवृन्दविचारणात् ।उद्दालकेन संप्राप्ता परमा दृष्टिरक्षता

In plain words

Śrī Vasiṣṭha said: Listen, Rāma, how of old, through inquiry into the host of the elements, Uddālaka attained the supreme, unimpaired vision.