pūrve tumi nirantara laite rāma-nāma
ebe kene nirantara lao kṛṣṇa-nāma''
pūrve—formerly; tumi—you; nirantara—constantly; laite—used to chant; rāma-nāma—the holy name of Lord Rāmacandra; ebe—now; kene—why; nirantara—constantly; lao—you chant; kṛṣṇa-nāma—the holy name of Kṛṣṇa.
"Formerly you were constantly chanting the holy name of Lord Rāma. Why are you now constantly chanting the holy name of Kṛṣṇa?"
Link to this page: https://prabhupadabooks.com/cc/madhya/9/24