One verse

Srimad Bhagavatam 10.6.34

10.6.34

दह्यमानस्य देहस्य धूमश्चागुरुसौरभ: । उत्थित: कृष्णनिर्भुक्तसपद्याहतपाप्मन: ॥ ३४ ॥

dahyamānasya dehasya dhūmaś cāguru-saurabhaḥ utthitaḥ kṛṣṇa-nirbhukta- sapady āhata-pāpmanaḥ

dahyamānasya
while being burnt to ashes
dehasya
of the body of Pūtanā
dhūmaḥ
the smoke
ca
and
aguru-saurabhaḥ
turned into saintly scented smoke of the aguru herb
utthitaḥ
emanating from her body
kṛṣṇa-nirbhukta
because of Kṛṣṇa’s having sucked her breast
sapadi
immediately
āhata-pāpmanaḥ
her material body became spiritualized or relieved of all material conditions

Because of Kṛṣṇa’s having sucked the breast of the Rākṣasī Pūtanā, when Kṛṣṇa killed her she was immediately freed of all material contamination. Her sinful reactions automatically vanished, and therefore when her gigantic body was being burnt, the smoke emanating from her body was fragrant like aguru incense.