Morning and evening protection
بِسْمِ اللَّهِ الَّذِي لاَ يَضُرُّ مَعَ اسْمِهِ شَيْءٌ فِي الأَرْضِ وَلاَ فِي السَّمَاءِ وَهُوَ السَّمِيعُ الْعَلِيمُ
Transliteration
bismillahilladhi la yadurru ma'asmihi shay'un fil-ardi wa la fis-sama' wa huwas-sami'ul-'alim
Translation
In the Name of Allah, who with His Name, nothing in the earth or the heavens can cause harm, and He is the Hearing, the Knowing
How
Say in the morning of each day and the evening of each night. Three times.
Source: Jami' at-Tirmidhi 3388. Full details