Canto 1, Chapter 7, Texts 55
sūta uvāca
arjunaḥ sahasājñāya
harer hārdam athāsinā
maṇiṁ jahāra mūrdhanyaṁ
dvijasya saha-mūrdhajam
Sūta Gosvāmī said: Just then Arjuna could understand the motive of the Lord by His equivocal orders, and thus with his sword he severed both hair and jewel from the head of Aśvatthāmā.