SB 10.50.31
badhyamanam hataratim
pasair varuna-manusaih
varayam asa govindas
tena karya-cikirsaya
Translation:
With the divine noose of Varuna and other, mortal ropes, Balarama began tying up Jarasandha, who had killed so many foes. But Lord Govinda still had a purpose to fulfill through Jarasandha, and thus He asked Balarama to stop.
Purport:
The word hataratim means “who has killed his enemies,” or “through whom his enemies would be killed.” Srila Visvanatha Cakravarti has provided this thoughtful note.