بِسْمِ اللَّهِ، تَوَكَّلْتُ عَلَى اللَّهِ، وَلَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللَّهِ
Transliteration
Bismillahi, tawakkaltu 'alallahi, wa la hawla wa la quwwata illa billah
English meaning
In the name of Allah, I have relied upon Allah; there is no power and no strength except with Allah.
When is it recited?
When leaving the house.
Its virtue
It is said: 'You have been guided, sufficed, and the devil has been turned away from you.'
Source
Tirmidhi, Da'awat 34