Brahmajalasutta 1.19

1.19

‘Or he might say: “Whereas some recluses and Brahmans, while living on food provided by the faithful, continue addicted to taking messages, going on errands, and acting as go-betweens; to wit, on kings, ministers of state, Kshatriyas, Brahmans, or young men, saying: ‘Go there, come hither, take this with you, bring that from thence.”
‘Gotama the recluse abstains from such servile duties.’