Nanda Mahārāja said: My dear great sage, if you think that your performing this process of purification will make Kaṁsa suspicious, then secretly chant the Vedic hymns and perform the purifying process of second birth here in the cow shed of my house, without the knowledge of anyone else, even my relatives, for this process of purification is essential.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
नन्द उवाच । अलक्षितोऽस्मिन् रहसि मामकैरपि गोव्रजे । कुरु द्विजातिसंस्कारं स्वस्तिवाचनपूर्वकम्
nanda uvāca | alakṣito'smin rahasi māmakairapi govraje | kuru dvijātisaṃskāraṃ svastivācanapūrvakam
SB 10.8.10