Srimad Bhagavata 11.3.21: “śabde pare ca niṣṇatam, brahmaṇy upasamasrayam.”

1. Guru has utmost faith in śāstra (śābde pare)
2. and understands and can explain śāstra very clearly and thoroughly (ca niṣṇātam).
3. Guru is fully dedicated to spirituality (brahmaṇyāśraya)
4. and therefore calm and quiet / without selfish desire (upaśama)

Bhagavad Gītā 4.34: “upadekṣyanti te jñānaṁ, jñāninas tattva-darśinaḥ”

1. Gurus have seen / realized the true nature of consciousness (jñānaṁ tattva darśinaḥ)
2. and they can explain it to others (jñānaṁ upadekṣyanti)

Qualifications of Disciple

Bhagavad Gītā 4.34: “tad viddhi praṇipātena, paripraśnena sevayā”

1. Disciples want to learn. (tad-viddhi)
2. They are humble are receptive to their teacher (praṇipāteṇa)
3. They ask thorough questions (paripraśneṇa)
4. They tend to the guru’s needs (seva)

Śrīmad Bhāgavatam 11.3.21: “tasmād guruṁ prapadyeta, jijñāsuḥ śreya uttamam”

1. Disciples want to learn (jijñāsuḥ)
2. …about their ultimate welfare (śreya uttama)
3. …so they humbly and receptively seek a teacher (guruṁ prapadya)

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   Source...https://vicd108.wordpress.com/2016/01/04/qualification-of-guru-and-disciple/