युधिष्ठिरकृष्णसंवादः — Yudhiṣṭhira’s Appeal and Kṛṣṇa’s Assurance
Droṇa-parva, Adhyāya 59
जघान स महाबाहु: पौलस्त्यं सगणं रणे । जो देवताओं और असुरोंके लिये भी अवध्य था, देवताओं और ब्राह्मणोंके लिये कण्टकरूप उस पुलस्त्यवंशी रावणका रणक्षेत्रमें महाबाहु श्रीरामचन्द्रजीने उसके दलबलसहित संहार कर डाला
jaghāna sa mahābāhuḥ paulastyaṃ sagaṇaṃ raṇe | yo devatāsu ca asureṣu ca avadhyaḥ āsīt, devatānāṃ brāhmaṇānāṃ ca kaṇṭakarūpaṃ taṃ pulastyavaṃśyaṃ rāvaṇaṃ raṇakṣetre mahābāhuḥ śrīrāmacandraḥ tasya dalabalasahitaṃ saṃhāraṃ cakāra |
Nārada said: The mighty-armed one slew the Paulastya (Rāvaṇa) together with his followers in battle. Though he was deemed invulnerable even to gods and asuras, he had become a thorn to the gods and the brāhmaṇas; therefore, on the battlefield, the mighty-armed Śrī Rāmacandra destroyed Rāvaṇa along with his forces—removing a grave menace to dharma and the moral order.
नारद उवाच
Even when an oppressor appears 'invulnerable' by worldly measures, dharma ultimately requires the removal of those who become a persistent menace to the righteous—especially when they harm the moral and spiritual foundations represented by the gods and brāhmaṇas.
Nārada recounts that Śrī Rāmacandra slew Rāvaṇa—identified as the Paulastya descendant—on the battlefield, destroying him along with his followers and forces, because Rāvaṇa had become a severe threat to gods and brāhmaṇas.