Shloka 6.97.29
सप्तनवतितमः सर्गः (Yuddha Kāṇḍa 97): Sugrīva’s Onslaught and the Fall of Virūpākṣa
तस्सुसङ्कृद्धतरःसुग्रीवोवानरेश्वरः ।।।।मोक्षितंचात्मनोदृष्टवाप्रहारंतेनरक्षसा ।
tataḥ susaṅkruddhataraḥ sugrīvo vānarēśvaraḥ | mokṣitaṃ cātmano dṛṣṭvā prahāraṃ tena rakṣasā ||
Thereupon Sugrīva, lord of the Vānaras, grew still more enraged when he saw that the Rākṣasa had evaded his blow.
Then Sugriva, the king of the forest, grew angry and hit the Rakshasa on the forehead.
It cautions that krodha (anger) easily arises from frustration; dharma requires vigilance so emotion does not eclipse righteous purpose.
Sugrīva becomes more furious upon realizing his strike was avoided by Virūpākṣa.
The need for self-restraint (dama) even in battle—an implicit virtue highlighted by the rising anger.