Srimad-Bhagavatam: Canto 4 - Chapter 1 - Verse 10
Sanskrit:
तेऽपि चामुममृष्यन्त: पादस्पर्शमिवोरगा: । शरैरविध्यन् युगपद् द्विगुणं प्रचिकीर्षव: ॥ १० ॥
ITRANS:
te ’pi cāmum amṛṣyantaḥpāda-sparśam ivoragāḥśarair avidhyan yugapaddvi-guṇaṁ pracikīrṣavaḥ
Translation:
Just like serpents, who cannot tolerate being trampled upon by anyone’s feet, the Yakṣas, being intolerant of the wonderful prowess of Dhruva Mahārāja, threw twice as many arrows — six from each of their soldiers — and thus they very valiantly exhibited their prowess.