Shloka 1.25.15
ताटकावृत्तान्तः — The Account of Tāṭakā and the Royal Duty to Protect
न ह्येनां शापसम्स्पृष्टां कश्चिदुत्सहते पुमान्।निहन्तुं त्रिषु लोकेषु त्वामृते रघुनन्दन।।।।
na hy enāṃ śāpa-saṃspṛṣṭāṃ kaścid utsahate pumān | nihantuṃ triṣu lokeṣu tvām ṛte raghunandana || 1.25.15 ||
For no man in the three worlds dares to slay her—she who has been touched by a curse—except you, O delight of the Raghu line.
O son of Raghu's dynasty she is maligned by the curse, and so not a single man in the three worlds except you, is competent to slay this yakshini.
Dharma assigns responsibility according to capacity: when a threat cannot be checked by ordinary means, the uniquely capable must act for the common good.
Viśvāmitra strengthens his command by stating that only Rāma has the competence to kill the curse-marked Tāṭakā.
Rāma’s exceptional protective power joined to restraint—strength meant for safeguarding the worlds.