Shloka 2
Śānti-parva Adhyāya 3: Karṇa’s training under Rāma Jāmadagnya and the Bhārgava restriction on the Brahmāstra
तस्मै स विधिवत कृत्स्नं ब्रह्मास्त्रं सनिवर्तनम् प्रोवाचाखिलमव्यग्रं तपस्वी तत् तपस्विने,तदनन्तर तपस्वी परशुरामने तपस्यामें लगे हुए कर्णको शान्तभावसे प्रयोग और उपसंहार विधिसहित सम्पूर्ण ब्रह्मास्त्रकी विधिपूर्वक शिक्षा दी
tasmai sa vidhivat kṛtsnaṃ brahmāstraṃ sanivartanam | provācākhilam avyagraṃ tapasvī tat tapasvine ||
Ensuite, selon le rite prescrit, l’ascète lui enseigna calmement le Brahmāstra tout entier, avec la manière de le rappeler; il expliqua tout pleinement et sans distraction, tel un sage austère instruisant un autre sage austère.
नारद उवाच
Educational Q&A
That the transmission of immense power must be governed by rule (vidhi), composure, and ethical restraint—true mastery includes knowing both how to release a weapon and how to withdraw it, preventing uncontrolled harm.
Nārada narrates that an ascetic instructor teaches a disciple the complete Brahmāstra, explicitly including its recall/cessation procedure, and does so calmly and thoroughly in a disciplined guru–disciple setting.