Atharvaveda 14.2.25

14.2.25

ví tiṣṭhantāṃ mātúr asyā́ upásthān nā́nārūpāḥ paśávo jā́yamānāḥ |
sumaṅgaly úpa sīdemám agníṃ sáṃpatnī práti bhūṣehá devā́n ||25||

Let there come forth (vi-sthā) from the lap of this mother animals (paçú) of various forms, being born; as one of excellent omen, sit thou by this fire; with thy husband (sámpatnī), be thou serviceable to the gods here.