SB 10.59.21
sulam bhaumo ’cyutam hantum
adade vitathodyamah
tad-visargat purvam eva
narakasya siro harih
apaharad gaja-sthasya
cakrena ksura-nemina
Translation:
Bhauma, frustrated in all his attempts, took up his trident to kill Lord Krsna. But even before he could release it, the Lord cut off his head with His razor-sharp cakra as the demon sat atop his elephant.
Purport:
According to Srila Visvanatha Cakravarti, as Bhauma raised his invincible trident, Satyabhama, sitting on Garuda with the Lord, said to Krsna, “Kill him right away,” and Krsna did just that.