CC Ādi 4.225

śrī-kṛṣṇa-caitanya gosāñi rasera sadana
aśeṣa-viśeṣe kaila rasa āsvādana
Word for word: 
śrī-kṛṣṇa-caitanya gosāñi — Lord Śrī Caitanya Mahāprabhu; rasera — of mellow; sadana — the residence; aśeṣa-viśeṣe — unlimited varieties of enjoyment; kaila — did; rasa — mellow; āsvādana — tasting.
Translation: 
Lord Śrī Kṛṣṇa Caitanya is the abode of rasa. He Himself tasted the sweetness of rasa in endless ways.