Śatapatha Brāhmaṇa ("of a hundred paths") 6.4.3.8

6.4.3.8

tatparyasyati | vāso agne viśvarūpaṃ saṃvyayasva vibhāvasaviti varuṇyā vai yajñe rajjuravaruṇyamevainadetatkṛtvā yathā vāsaḥ paridhāpayedevam paridhāpayati

He lays it round (the skin), with, 'Invest thyself, O lustrous Agni, in the many-coloured garment!' In the sacrifice the cord is Varunic; having thereby made it non-Varunic, he makes him put on (the skin) as one would make a garment be put on.