Musnad Ahmad 8:115

Isma'il narrated to us, Hisham al-Dastawa'i informed us, from Yahya ibn Abi Kathir, from al-Hadrami ibn Lahiq, from Sa'id ibn al-Musayyib, who said: I asked Sa'd ibn Abi Waqqas about *al-tiyarah* (superstitious omens), and he rebuked me and said: "Who told you?" I disliked telling him who had told me. He said: The Messenger of Allah, peace and blessings of Allah be upon him, said: "There is no *'adwa* (contagion), no *tiyarah* (superstitious omens), and no *ham* (superstition regarding the owl). If there were to be *tiyarah* in anything, it would be in the horse, the woman, and the house. And if you hear of the plague in a land, do not enter it, and if it is in a land while you are in it, do not flee from it."