Shatapatha Brahmana 4.1.5.5

4.1.5.5

sa hovāca | ko vo 'dyeva kiṃcidadrākṣīditi te hocuḥ puruṣa evāyaṃ jīrṇiḥ kṛtyārūpaḥ śete tamanarthyam manyamānāḥ kumārā loṣṭairvyapikṣanniti sa vidāṃ cakāra sa vai cyavana iti

He said, 'Which of you has seen anything here this day?'--They said, 'Yonder lies a man, decrepit and ghostlike: him the boys have pelted with clods, setting him at nought.' Then Saryâta knew that this was Kyavana.