Caitanya-caritāmṛta 16.13
śūdra-vaiṣṇavera ghare yāya bheṭa lañā ei-mata tāṅra ucchiṣṭa khāya lukāñā
[shoodra-vaishnavera ghare yaaya bheta lanaa ei-mata taanra uchchishta khaaya lukaanaa]
Blended reading (Sanskrit + English inline)
śūdra-vaiṣṇavera ghare yāya bheṭa lañā ei-mata tāṅra ucchiṣṭa khāya lukāñā
He would also take gifts to the homes of Vaiṣṇavas born in śūdra families. Then he would hide and in this manner eat the remnants of food they threw away.
My note
Source: vedabase.io