तं वटुं वामनं दृष्ट्वा मोदमाना महर्षयः ।
कर्माणि कारयामासुः पुरस्कृत्य प्रजापतिम् ॥ १३ ॥
tam-Him; vatum-the brahmacari; vamanam-dwarf; drstva-seeing; modamanah-in a happy mood; maha-rsayah-the great saintly persons; karmani-ritualistic ceremonies; karayam asuh-performed; puraskrtya-keeping in front; prajapatim-Kasyapa Muni, the Prajapati.
When the great sages saw the Lord as the brahmacari-dwarf Vamana, they were certainly very pleased. Thus they placed before them Kasyapa Muni, the Prajapati, and performed all the ritualistic ceremonies, such as the birthday ceremony.
According to Vedic civilization, when a child is born in the family of a brahmana, the birthday ceremony, known as jata-karma, is first performed, and then other ceremonies are also gradually performed. But when this vamana-rupa appeared in the form of a vatu, or brahmacari, His sacred thread ceremony was also performed immediately.