CC Ādi 15.15

āmi ta’ kariba tomā’ duṅhāra sevana
śuniyā santuṣṭa haila pitā-mātāra mana
Word for word: 
āmi ta’ — I; kariba — shall do; tomā — for you; duṅhāra — both; sevana — service; śuniyā — after hearing; santuṣṭa — pleased; haila — became; pitā-mātāra mana — the parents’ minds.
Translation: 
Śrī Caitanya Mahāprabhu assured His parents that He would serve them, and thus the minds of His father and mother were satisfied.