CC Madhya 3.143

kāndiyā kahena śacī, bāchāre nimāñi
viśvarūpa-sama nā kariha niṭhurāi
Word for word: 
kāndiyā — crying; kahena — says; śacī — mother Śacī; bāchāre — my darling; nimāñi — O Nimāi; viśvarūpa — Viśvarūpa; sama — like; nā kariha — do not do; niṭhurāi — cruelty.
Translation: 
Understanding that Lord Caitanya had accepted the renounced order of life, Śacīmātā, crying, said to the Lord, “My darling Nimāi, do not be cruel like Viśvarūpa, Your elder brother.”