prabhura ājñāya - under the instruction of Śrī Caitanya Mahāprabhu; kṛṣṇa-kathā - topics of Lord Kṛṣṇa; śunite - to hear; āilā ethā - you have come here; ihā va-i - without this; mahā-bhāgya - great fortune; āmi - I; pāba - will get; kothā - where.

“Following the instruction of Śrī Caitanya Mahāprabhu, you have come to hear about Kṛṣṇa. This is my great fortune. How else would I get such an opportunity?”