Śrīmad-Bhāgavatam 1.7.51

tatrathereupon — thereupon; āhasaid — said; amarṣitaḥin an angry mood — in an angry mood; bhīmaḥBhīma — Bhīma; tasyahis — his; śreyānultimate good — ultimate good; vadhaḥkilling — killing; smṛtaḥrecorded — recorded; nanot — not; bhartuḥof the master — of the master; nanor — nor; ātmanaḥof his own self — of his own self; caand — and; arthefor the sake of — for the sake of; yaḥone who — one who; ahankilled — killed; suptānsleeping — sleeping; śiśūnchildren — children; vṛthāwithout purpose — without purpose.