Caitanya-caritāmṛta 16.72
mane mane jape, mukhe nā kare ākhyāna ei ihāra manaḥ-kathā — kari anumāna”
[mane mane jape, mukhe naa kare aakhyaana ei ihaara manah-kathaa — kari anumaana”]
Blended reading (Sanskrit + English inline)
mane mane jape, mukhe nā kare ākhyāna ei ihāra manaḥ-kathā — kari anumāna”
“This boy chants the mantra within his mind but does not say it aloud. That is his intention, as far as I can guess.”
My note
Source: vedabase.io