Jaiminīya (Talavakāra) Brāhmaṇa 2-8.286.p4

2-8.286.p4

tadyadetāni vyatiṣaktāni chandāṃsi kriyante vyatiṣaktādvai mithunātprajāḥ paśavaḥ

When these meters are made intertwined, [it is because] offspring and cattle are born from an intertwined pair;