Uthman bin `Affan (May Allah be pleased with him) reported:
The Messenger of Allah (peace and blessings of Allaah be upon him) said,
"He who recites three times every morning and evening:
`Bismillahil-ladhi la yadurru ma`as-mihi shai'un
fil-ardi wa la fis-sama'i, wa Huwas-Sami`ul-`Alim
(In the Name of Allah with Whose Name there is protection
against every kind of harm in the earth or in the heaven,
and He is the All-Hearing and All-Knowing),'
nothing will harm him.''
[Abu Dawud and At-Tirmidhi].
