CC Madhya 6.257

sārvabhauma hailā prabhura bhakta ekatāna
mahāprabhura sevā-vinā nāhi jāne āna
Synonyms: 
sārvabhauma — Sārvabhauma Bhaṭṭācārya; hailā — became; prabhura — of the Lord; bhakta — a devotee; ekatāna — without deviation; mahāprabhura — of Lord Śrī Caitanya Mahāprabhu; sevā — service; vinā — except; nāhi — not; jāne — knows; āna — anything else.
Translation: 
Indeed, Sārvabhauma Bhaṭṭācārya became an unalloyed devotee of Caitanya Mahāprabhu; he did not know anything but the service of the Lord.