'caitanya-dasa' nama suni' kahe gaura-raya
'kiba nama dharanacha, bujhana na yaya'
caitanya-dasa—Caitanya dasa; nama—name; suni'-hearing; kahe gaura-raya—Sri Caitanya Mahaprabhu said; kiba—what; nama—name; dharanacha—you have given; bujhana na yaya—it cannot be understood.
When the Lord heard that his name was Caitanya dasa, He said, "What kind of name have you given him? It is very difficult to understand."
Link to this page: https://prabhupadabooks.com/cc/antya/10/144