Falguni (Arjuna) promised to the preceptor "To give (the Dakshina)." Drona said, O sinless one, you must fight with me when I fight with you.'
ददानीति प्रतिज्ञाते फाल्गुनेनाब्रवीद् गुरुः। युद्धेऽहं प्रतियोद्धव्यो युध्यमानस्त्वयानघ॥