Śatapatha Brāhmaṇa ("of a hundred paths") 6.6.3.1

6.6.3.1

atha vaikaṅkatīmādadhāti | prajāpatiryām prathāmāhutimajuhotsa hutvā yatra nyamṛṣṭha tato vikaṅkataḥ samabhavatsaiṣā prathamāhutiryadvikaṅkatastāmasminnetajjuhoti tayainametatprīṇāti parasyā adhi saṃvato 'varāṃ abhyātara yatrāhamasmi tāṃ aveti yathaiva yajustathā bandhuḥ

He then puts on a vikaṅkata (flacourtia sapida) one. When Pragâpati performed the first offering, a vikaṅkata tree sprang forth from that place where, after offering, he cleansed (his hands). That vikaṅkata, then, is that first offering; it is that he now offers on this (fire), and he therewith gratifies him (Agni). [Vâg. S. XI, 71; Rik S. VIII, 75, 15] 'From the far region come thou over to the near one: do thou protect that wherein I am!' as the text, so its meaning.