Śrīmad-Bhāgavatam · Text 6.18.54
Who is speaking and story frame
सांवत्सरं पुंसवनं व्रतमेतदविप्लुतम् ।
धारयिष्यसि चेत्तुभ्यं शक्रहा भविता सुत: ॥ ५४ ॥
sāṁvatsaraṁ puṁsavanaṁ
vratam etad aviplutam
dhārayiṣyasi cet tubhyaṁ
śakra-hā bhavitā sutaḥ
Kaśyapa Muni continued: If you perform this ceremony called puṁsavana, adhering to the vow with faith for at least one year, you will give birth to a son destined to kill Indra. But if there is any discrepancy in the discharge of this vow, the son will be a friend to Indra.
Read this verse on Vedabase.ioThis verse has no purport; its meaning is explained by the verses around it.