Shatapatha Brahmana 6.8.1.6

6.8.1.6

samidhāgniṃ duvasyateti | samidhāgniṃ namasyatetyetadghṛtairbodhayatātithimāsminhavyā juhotaneti ghṛtairaha bodhayatātithimo asminhavyāni juhutetyetadbruddhavatyetpāyai hyenametadbodhayati

[Vâg. S. XII, 30; Rik S. VIII, 44, 1] 'With fuel serve ye Agni!'--that is, 'with fuel worship ye Agni!'--'with draughts of ghee awake ye the guest, offer ye libations unto him!'--that is, 'with (draughts of) ghee do ye awake the guest, and offer libations unto him!'--with a (verse) containing (the verb) 'awake' he awakens him for the starting.