Brahmaśirastra-pratisaṃhāra — Retraction and redirection of the supreme weapon
Sauptika Parva, Adhyāya 15
वैशग्पायन उवाच तत: परममस्त्र॑ तु द्रौणिरुद्यतमाहवे । द्वैधायनवच: श्रुत्वा गर्भेषु प्रमुमोच ह
Vaiśaṃpāyana uvāca: tataḥ paramam astraṃ tu drauṇir udyatam āhave | dvaidhāyana-vacaḥ śrutvā garbheṣu pramumoca ha ||
Vaiśaṃpāyana dijo: Entonces, en medio de la batalla, el hijo de Droṇa (Aśvatthāman) soltó aquella arma suprema. Habiendo oído las palabras de Dvaidhāyana (Vyāsa), aun así la descargó sobre los embriones en los vientres.
वैशग्पायन उवाच
The verse highlights how vengeance can drive a warrior beyond the bounds of dharma: targeting the unborn is portrayed as an extreme moral transgression, turning war into an assault on the very continuity of life and lineage.
Aśvatthāman, in battle, releases a supreme weapon after hearing Vyāsa’s words; the weapon is directed toward the embryos in the wombs of the Pāṇḍava line, escalating the conflict from battlefield combat to an attempt at annihilating future heirs.