CC Ādi 16.45

ślokera artha kaila vipra pāiyā santoṣa
prabhu kahe — kaha ślokera kibā guṇa-doṣa
Word for word: 
ślokera — of the verse; artha — explanation; kaila — made; vipra — the brāhmaṇa; pāiyā — obtaining; santoṣa — satisfaction; prabhu — the Lord; kahe — said; kaha — kindly speak; ślokera — of the verse; kibā — what are; guṇa — qualities; doṣa — faults.
Translation: 
Satisfied by the statement of Lord Caitanya Mahāprabhu, the brāhmaṇa [Keśava Kāśmīrī] explained the quoted verse. Then the Lord said, “Now kindly explain the special qualities and faults in the verse.”
Purport: 

Not only did Śrī Caitanya Mahāprabhu pick out this one among the one hundred verses and remember it although the brāhmaṇa had recited them like the blowing wind, but He also analyzed its qualities and faults. Not only did He hear the verse, but He immediately made a critical study of it.