SB 10.26.9
vatsesu vatsa-rupena
pravisantam jighamsaya
hatva nyapatayat tena
kapitthani ca lilaya
Translation:
Desiring to kill Krsna, the demon Vatsa disguised himself as a calf and entered among Krsna’s calves. But Krsna killed the demon and, using his body, enjoyed the sport of knocking kapittha fruits down from the trees.