Dua To Protect Oneself

"If Allah bestows favors over his slave, whether on his family, children, or property and he says,
مَا شَاءَ اللَّه، لا قُوَّةَ إِلاَّ بِاللَّه
'Masha Allah la qwata ila billah.'
(What Allah has willed there is no might except with Allah.)
nothing should overcome him." (Ibn Alsanni)