CC Antya 8.36

pṛthivīte ropaṇa kari’ gelā premāṅkura
sei premāṅkurera vṛkṣa — caitanya-ṭhākura
Word for word: 
pṛthivīte — within this material world; ropaṇa kari’ — sowing; gelā — went; prema-aṅkura — the seed of ecstatic love for Kṛṣṇa; sei prema-aṅkurera — of that seed of ecstatic love for Kṛṣṇa; vṛkṣa — the tree; caitanya-ṭhākura — Lord Śrī Caitanya Mahāprabhu.
Translation: 
Mādhavendra Purī sowed the seed of ecstatic love for Kṛṣṇa within this material world and then departed. That seed later became a great tree in the form of Śrī Caitanya Mahāprabhu.