SB 1.7.56

विमुच्य रशनाबद्धं बालहत्याहतप्रभम् ।
तेजसा मणिना हीनं शिबिरान्निरयापयत् ॥५६॥

vimucya raśanā-baddhaṁ
bāla-hatyā-hata-prabham
tejasā maṇinā hīnaṁ
śibirān nirayāpayat

vimucya - after releasing him; raśanā-baddham - from the bondage of ropes; bāla-hatyā - infanticide; hata-prabham - loss of bodily luster; tejasā - of the strength of; maṇinā - by the jewel; hīnam - being deprived of; śibirāt - from the camp; nirayāpayat - drove him out.

Text

He [Aśvatthāmā] had already lost his bodily luster due to infanticide, and now, moreover, having lost the jewel from his head, he lost even more strength. Thus he was unbound and driven out of the camp.

Purport

Thus being insulted, the humiliated Aśvatthāmā was simultaneously killed and not killed by the intelligence of Lord Kṛṣṇa and Arjuna.

Srimad Bhagavatam. Canto 1: Creation

Chapter 7: The Son of Drona Punished. Text 56

He [Aśvatthāmā] had already lost his bodily luster due to infanticide, and now, moreover, having lost the jewel from his head, he lost even more strength. Thus he was unbound and driven out of the camp.