[Bismillāhi]
Allāhumma 'innī 'a`ūdhu bika minal-khubthi walkhabā'ith.
[In the Name of Allah].
O Allah, I seek protection in You from evil and the evil ones
(or, from the evil male and female Jinn).
Reference:
Al-Bukhari 1/45, Muslim 1/283. The addition of Bismillah at its beginning
was reported by Said bin Mansur. See Fathul-Bari 1/244