Atharvaveda 6.68.1

6.68.1

ā́yám agant savitā́ kṣuréṇoṣṇéna vāya udakénéhi |
ādityā́ rudrā́ vásava undantu sácetasaḥ sómasya rā́jño vapata prácetasaḥ ||1||

Savitar here hath come with razor; come, O Vāyu, with hot water; let the Ādityas, the Rudras, the Vasus, wet [him] in accordance; do ye, forethoughtful, shave [the head] of king Soma.