यदा न गम्यते पारं तयोरन्यतरस्य वा । ततः संकुलयुद्धेन तद् युद्ध व्याकुलीकृतम्,जब द्रोणाचार्य और अर्जुनमेंसे कोई भी किसीको परास्त न कर सका, तब सामूहिक युद्धके द्वारा उस संग्रामको व्यापक बना दिया गया
yadā na gamyate pāraṃ tayor anyatarasya vā | tataḥ saṅkulayuddhena tad yuddhaṃ vyākulīkṛtam ||
Sañjaya dit : Lorsque ni l’un ni l’autre—Droṇācārya ou Arjuna—ne put atteindre la « rive lointaine », c’est-à-dire triompher de façon décisive, alors la bataille fut jetée dans la confusion et s’étendit en un mêlée collective inextricable.
संजय उवाच
A duel between equals can fail to yield a decisive outcome; when that happens, the struggle often expands into a chaotic mass-conflict, increasing collateral harm and moral complexity. The verse implicitly warns how unresolved rivalry can destabilize the wider field of dharma in war.
Sañjaya reports that Droṇa and Arjuna could not defeat one another. Because neither gained a clear advantage, the fighting shifted into a confused, collective mêlée, making the battlefield more turbulent and widespread.