Du‘aa’s for protection from harms and ills

“Whoever says ‘Bismillah illadhi la yadurru ma‘a ismihi shay’un fi’l-ard wa la fi’l-sama’ wa huwa al-samee‘ ul-‘aleem (In the name of Allah with Whose name nothing can harm on earth or in heaven, and He is the All-Hearing, All-Knowing)’, three times, will not be stricken with a sudden affliction until morning comes, and whoever says them when morning comes will not be stricken with a sudden affliction until evening comes.”

Narrated by Abu Dawood (5088)