38
Śrīmad-Bhāgavatam
[Canto 8, Ch. 18]
karmāṇi kārayām āsuḥ puraskṛtya prajāpatim
tam—Him; vaṭum—the brahmacārī; vāmanam—dwarf; dṛṣṭvā—seeing; modamānāḥ—in a happy mood; mahā-ṛṣayaḥ—the great saintly persons; karmāṇi—ritualistic ceremonies; kārayām āsuḥ—performed; puraskṛtya—keeping in front; prajāpatim—Kaśyapa Muni, the Prajāpati.
TRANSLATION
When the great sages saw the Lord as the brahmacārī-dwarf Vāmana, they were certainly very pleased. Thus they placed before them Kaśyapa Muni, the Prajāpati, and performed all the ritualistic ceremonies, such as the birthday ceremony.
PURPORT
According to Vedic civilization, when a child is born in the family of a  brāhmaṇa , the birthday ceremony, known as  jāta-karma , is first performed, and then other ceremonies are also gradually performed. But when this  vāmana-rūpa  appeared in the form of a  vaṭu , or  brahmacārī , His sacred thread ceremony was also performed immediately.
TEXT 14
तस्योपनीयमानस्य सावित्रीं सविताब्रवीत् ।
बृहस्पतिर्ब्रह्मसूत्रं मेखलां कश्यपोऽददात् ॥१४॥
tasyopanīyamānasya sāvitrīm savitābravīt bṛhaspatir brahma-sūtram mekhalām kaśyapo 'dadāt
tasya—of Lord Vāmanadeva; upanīyamānasya—at the time of His being offered the sacred thread ceremony; sāvitrīm—the Gāyatrī mantra; savitā—the sun-god; abravīt—chanted; bṛhaspatiḥ—Bṛhaspati, the guru of the demigods; brahma-sūtram—the sacred