सांख्ययोगभेदः तथा योगबलोपदेशः
Sāṃkhya–Yoga Distinction and Instruction on Yogic Strength
आनतेनाथ शूलेन पाणिनामिततेजसा । पिनाकमिति चोवाच शूलमुग्रायुध: प्रभु:,जब अमित तेजस्वी शूल उनके हाथसे मुड़कर धनुषके रूपमें परिणत हो गया, तब उग्र धनुर्धर भगवान् शिवने पाणिसे आनत होनेके कारण उस शूलको 'पिनाक' कहा
ānatena atha śūlena pāṇināmitatejasā | pinākam iti covāca śūlam ugrāyudhaḥ prabhuḥ ||
Bhīṣma said: Then, when that trident—bent down by the hand of the Lord of immeasurable splendor—was transformed into the form of a bow, the mighty Lord Śiva, whose weapons are terrible, named that trident ‘Pināka’, because it had been made to bow (ānata) by his hand. The episode underscores how divine power can redirect even an instrument of destruction into a disciplined, purposeful form, and how names preserve the ethical memory of an act.
भीष्म उवाच
Even formidable force (a trident) can be redirected into controlled purpose (a bow) under rightful authority; the naming ‘Pināka’ preserves the moral memory that power should be made to ‘bow’ to higher order and discipline.
Śiva bends a trident with his hand; it takes the form of a bow. Because it was made to bow (ānata), Śiva names it ‘Pināka’. Bhīṣma narrates this as part of a larger account in the Śānti Parva.