Gobhilagrihyasutra 2.7.21

2.7.21

jātarūpeṇa vā ''dāya kumārasya mukhe juhoti medhāṃ te mitrāvaruṇāv ity etaya rcā, sadasas patim adbhutam iti ca -

Or he takes it with gold (i.e. with a golden spoon) and sacrifices it on the face of the boy with this verse, 'May Mitra and Varuna bestow intelligence on thee' (MB. I, 5, 9), and with (the verse), 'The lord of the seat, the wonderful' (Sâma-veda I, 171).