śuni' harṣe kahe prabhu — "kahile niścaya
yāṅhā haite kṛṣṇa-bhakti sei guru haya"
śuni' - hearing; harṣe - in great jubilation; kahe prabhu - Śrī Caitanya Mahāprabhu said; kahile niścaya - you have spoken correctly; yāṅhā haite - from whom; kṛṣṇa-bhakti - devotion to Kṛṣṇa; sei - that person; guru haya - is the spiritual master.