Shatapatha Brahmana 5.3.5.24

5.3.5.24

taddhaike | samantam pariveṣṭayanti nābhirvā asyaiṣā samantaṃ vā iyaṃ nābhiḥ paryetīti vadantastadu tathāna kuryātpurastādevāvagūhetpurastāddhīyaṃ nābhistadyadenaṃ vāsāṃsi paridhāpayati janayatyevainametajjātamabhiṣiñcānīti tasmādenaṃ vāsāṃsi paridhāpayati

Now some wind it quite round about (the navel) saying, 'that (band) is his navel, and this navel goes all round.' But let him not do this, but let him merely tuck it under in front, for this navel is in front. And as to why he makes him put on the garments;--he thereby causes him to be born, thinking, 'I will anoint him when born:' that is why he makes him put on the garments.