in Bundahishn (37.10–14), Arshtat plays this role together with the Amesha Spenta Ameretat, of whom Arshtat is a hamkar "co-operator"; and in the Book of Arda Wiraz (5.3), she stands there with Mithra, Rashnu, Vayu-Vata, and Verethragna.
ɪn bˈʌndɐhˌɪʃn θˈɜːɾi sˈɛvən.tˈɛn fˈoːɹtiːn, ˈɑːɹʃtæt plˈeɪz ðɪs ɹˈoʊl təɡˌɛðɚ wɪððɪ ˈeɪmʃə spˈɛntə ˈæmɚɹˌɛɾæt, ʌv hˈuːm ˈɑːɹʃtæt ɪz ɐ hˈæmkɑːɹ "kˈoʊˈɑːpɚɹˌeɪɾɚ"; ænd ɪnðə bˈʊk ʌv ˈɑːɹdə wˈɜːɹæz fˈaɪv.θɹˈiː, ʃiː stˈændz ðɛɹ wɪð mˈɪθɹə, ɹˈæʃnuː, vˈeɪuːvˈɑːɾə, ænd vəɹˈiːθɹæɡnə.