Śatapatha Brāhmaṇa ("of a hundred paths") 3.3.2.3

3.3.2.3

atha sampreṣyati | somopanahanamāhara somaparyāṇahanamāharoṣṇīṣamāhareti sa yadeva śobhanaṃ tatsomopanahanaṃ syādvāso hyasyaitadbhavati śobhanaṃ hyetasya vāsaḥ sa yo hainaṃ śobhanenopacarati śobhate hātha ya āha yadeva kiṃ ceti yaddhaiva kiṃ ca bhavati tasmādyadeva śobhanaṃ tatsomopanahanaṃ syādyadeva kiṃ ca somaparyāṇahanam

He then orders (the sacrificer's men), 'Bring thou the Soma-cloth! bring thou the Soma-wrapper! bring thou the head-band!' Let some shining (cloth) be the Soma-cloth; for this is to be his (king Soma's) garment, and shining indeed is his garment: and whosoever serves him with a shining (garment), he truly shines. But he who says, '(Bring) anything whatsoever,' he will indeed be anything whatsoever: let the Soma-cloth, therefore, be some splendid (cloth), and the Soma-wrapper one of any kind.