nārāyaṇera - of Lord Nārāyaṇa; kā kathā - what to speak; śrī-kṛṣṇa - Lord Śrī Kṛṣṇa; āpane - Himself; gopikāre - the gopīs; hāsya karāite - to make them jubilant; haya - becomes; nārāyaṇe - in the form of Nārāyaṇa.

“To say nothing of Lord Nārāyaṇa personally, Lord Kṛṣṇa Himself appeared as Nārāyaṇa just to play a joke on the gopīs.