Du’a from sudden affliction

I heard Uthman ibn Affan (his father) say:

‘Uthman ibn ‘Affan said: I heard the Messenger of Allah (ﷺ) say:

Whoever says, 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 it three times when morning comes will not be stricken with a sudden affliction until evening comes.

Narrated by Abu Dawud (5088)