|Canto 10: The Summum Bonum||Chapter 78: The Killing of Dantavakra, Vidūratha and Romaharṣaṇa|
Bhaktivedanta VedaBase: Śrīmad Bhāgavatam 10.78.28
etāvad uktvā bhagavān
nivṛtto 'sad-vadhād api
bhāvitvāt taḿ kuśāgreṇa
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.
Śrīla Prabhupāda writes, "Lord Balarāma had avoided taking part in the Battle of Kurukṣetra, and yet because of His position, the reestablishment of religious principles was His prime duty. Considering these points, He killed Romaharṣaṇa Sūta simply by striking him with a kuśa straw, which was nothing but a blade of grass. If someone questions how Lord Balarāma could kill Romaharṣaṇa Sūta simply by striking him with a blade of kuśa grass, the answer is given in the Śrīmad-Bhāgavatam by the use of the word prabhu (master). The Lord's position is always transcendental, and because He is omnipotent He can act as He likes without being obliged to follow the material laws and principles. Thus it was possible for Him to kill Romaharṣaṇa Sūta simply by striking him with a blade of kuśa grass.''
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