Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 58
Sanskrit:
एतत्पयोव्रतं नाम पुरुषाराधनं परम् ।पितामहेनाभिहितं मया ते समुदाहृतम् ॥ ५८ ॥
ITRANS:
etat payo-vrataṁ nāmapuruṣārādhanaṁ parampitāmahenābhihitaṁmayā te samudāhṛtam
Translation:
This is the religious ritualistic ceremony known as payo-vrata, by which one may worship the Supreme Personality of Godhead. I received this information from Brahmā, my grandfather, and now I have described it to you in all details.