And we have heard that the son of Gautama has promised the same in double that time, and the son of Drona has promised (the same) in ten nights, acquainted as he is with mighty weapons.
गौतमो द्विगुणं कालमुक्तवानिति नः श्रुतम्। द्रोणिस्तु दशरात्रेण प्रतिजज्ञे महास्त्रवित्॥