SB 10.79.5
tam akrsya halagrena
balvalam gagane-caram
musalenahanat kruddho
murdhni brahma-druham balah
Translation:
With the tip of His plow Lord Balarama caught hold of the demon Balvala as he flew through the sky, and with His club the Lord angrily struck that harasser of brahmanas on the head.