If you want to receive knowledge, then you must approach a guru who is brahma-niṣṭham. That is the qualification of guru. Brahman, brahmaṇy upaśamāśrayam. These words are there. He is living in Brahman, Absolute Truth. He has no other business. That is guru.
Śrīla Prabhupāda's lecture on Śrīmad-Bhāgavatam 2.8.7 — February 10, 1975, Los Angeles
