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SB 10.78.7
evam ruksais tudan vakyaih
krsnam totrair iva dvipam
gadayatadayan murdhni
simha-vad vyanadac ca sah
Translation:
Thus trying to harass Lord Krsna with harsh words, as one might prick an elephant with sharp goads, Dantavakra struck the Lord on the head with his club and roared like a lion.