The Iliad 8.425–426

When she had thus spoken swift-footed Iris departed; but Hera spake to Athene, saying: Out upon it, thou child of Zeus that beareth the aegis! I verily will no more suffer that we twain seek to wage war against Zeus for mortals' sake. Of them let one perish and another live,even as it may befall; and for him, let him take his own counsel in his heart and judge between Trojans and Danaans, as is meet. So spake she, and turned back her single-hooved horses. Then the Hours unyoked for them their fair-maned horses, and tethered them at their ambrosial mangers,