SB 11.31.12

martyena yo guru-sutaṁ yama-loka-nītaṁ
 tvāṁ cānayac charaṇa-daḥ paramāstra-dagdham
jigye ’ntakāntakam apīśam asāv anīśaḥ
 kiṁ svāvane svar anayan mṛgayuṁ sa-deham
Word for word: 
martyena — in the same human body; yaḥ — who; guru-sutam — the son of His spiritual master; yama-loka — to the planet of Yamarāja; nītam — brought; tvām — you; ca — and; ānayat — brought back; śaraṇa-daḥ — the giver of shelter; parama-astra — by the supreme weapon, the brahmāstra; dagdham — burned; jigye — He conquered; antaka — of the agents of death; antakam — who is the death; api — even; īśam — Lord Śiva; asau — He, Kṛṣṇa; anīśaḥ — incapable; kim — whether; sva — of Himself; avane — in the protection; svaḥ — to the spiritual world; anayat — brought; mṛgayum — the hunter; sa-deham — in the same body.
Translation: 
Lord Kṛṣṇa brought the son of His guru back from the planet of the lord of death in the boy’s selfsame body, and as the ultimate giver of protection He saved you also when you were burned by the brahmāstra of Aśvatthāmā. He conquered in battle even Lord Śiva, who deals death to the agents of death, and He sent the hunter Jarā directly to Vaikuṇṭha in his human body. How could such a personality be unable to protect His own Self?
Purport: 

To mitigate his own and Parīkṣit Mahārāja’s distress at the narration of Lord Kṛṣṇa’s departure from this world, Śrī Śukadeva Gosvāmī here gives several clear examples proving that Lord Kṛṣṇa is far beyond the influence of death. Although the son of Lord Kṛṣṇa’s spiritual master (Sāndīpani Muni) had been taken by death, the Lord brought him back in his same body. Similarly, the power of Brahman cannot touch Lord Kṛṣṇa, since Parīkṣit Mahārāja, though burned by the brahmāstra weapon, was easily saved by the Lord. Lord Śiva was clearly defeated by Lord Kṛṣṇa in the battle with Bāṇāsura, and the hunter Jarā was sent to a Vaikuṇṭha planet in his same human body. Death is an insignificant expansion of Lord Kṛṣṇa’s external potency and cannot possibly act upon the Lord Himself. Those who actually understand the transcendental nature of Lord Kṛṣṇa’s activities will find convincing evidence in these examples.