CC Madhya 8.295

krame uṭhāite seha uttama vastu pāya
aiche praśnottara kaila prabhu-rāmarāya
Synonyms: 
krame — gradually; uṭhāite — to raise; seha — that person; uttama — best; vastu — metal; pāya — gets; aiche — so also; praśna-uttara — the questions and answers; kaila — have done; prabhu — Śrī Caitanya Mahāprabhu; rāma-rāya — and Rāmānanda Rāya.
Translation: 
Śrī Caitanya Mahāprabhu and Rāmānanda Rāya worked like miners, excavating all kinds of valuable metals, each one better than the other. Their questions and answers are exactly like that.