Śatapatha Brāhmaṇa ("of a hundred paths") 2.3.2.8

2.3.2.8

navāvasite vainamāhareyuḥ | tasminpaceyustadbrāhmaṇā aśnīyuryadyu tanna vindedyatpacedapi goreva dugdhamadhiśrayitavai brūyāttasminbrāhmaṇānpāyayitavai brūyātpāpīyāṃso ha vā asya sapatnā bhavanti yasyaivaṃ viduṣa evaṃ kurvanti tasmādevameva cikīrṣet

Or they may also take it over to a new dwelling; and let them then cook on it food (other than meat) for the priests to eat. And should he not be able to procure anything to cook, let him order the milk of a cow to be put thereon and let the priests be asked to drink it. And his enemies will indeed fare ill, for whomsoever, knowing this, they do so: let him, therefore, endeavour by all means to do so.