Shatapatha Brahmana 9.5.1.42

9.5.1.42

pratyetya vaiśvakarmaṇāni juhoti | viśvāni karmaṇyayamagnistānyasyātra sarvāṇi karmāṇi kṛtāni bhavanti tānyetatprīṇāti tāni haviṣā devatāṃ karoti yasyai vai devatāyai havirgṛhyate sā devatā na sā yasyai na gṛhyate 'tho viśvakarmāyamagnistamevaitatprīṇāti

And having returned (to the fire-altar), he performs the oblations to Visvakarman;--This Agni(-kayana) indeed (includes) all sacrificial rites (visvâni karmâni); and all these its rites have been performed in this (agnikayana): he now gratifies them, and makes them a deity by means of an offering of sacrificial food; for only that one is a deity, for whom an oblation is prepared, but not one for whom it is not (prepared). Moreover, this Agni is Visvakarman (the all-worker): it is him he thereby gratifies.