One verse

Srimad Bhagavatam 10.78.28

10.78.28

एतावदुक्त्वा भगवान् निवृत्तोऽसद्वधादपि । भावित्वात् तं कुशाग्रेण करस्थेनाहनत् प्रभु: ॥ २८ ॥

etāvad uktvā bhagavān nivṛtto ’sad-vadhād api bhāvitvāt taṁ kuśāgreṇa kara-sthenāhanat prabhuḥ

etāvat
this much
uktvā
saying
bhagavān
the Personality of Godhead
nivṛttaḥ
stopped
asat
the impious
vadhāt
from killing
api
although
bhāvitvāt
because it was inevitable
tam
him, Romaharṣaṇa
kuśa
of kuśa grass
agreṇa
with the tip of a blade
kara
in His hand
sthena
held
ahanat
killed
prabhuḥ
the Lord

[Śukadeva Gosvāmī continued:] Although Lord Balarāma had stopped killing the impious, Romaharṣaṇa’s death was inevitable. Thus, having spoken, the Lord killed him by picking up a blade of kuśa grass and touching him with its tip.