We are taught to recite this doua three times in the morning and three times in the evening. The Prophet (saws) has said, that whoever recites it in the morning will not be afflicted by any calamity before evening, and whoever recites it in the evening will not be afflicted by any calamity before morning! What a powerful doua!
The doua says:
“In the Name of Allah, Who with His name nothing can cause harm in the earth nor in the heavens, and He is the All-Hearing, the All-Knowing.”
As you recite this doua, reflect on who you are seeking protection from the calamities of everyday life. It is none other than the Creator of the heavens and the earth and everything in between them! So then, it is very easy for Him to protect you, for you are seeking for the sole source. Seek and be firm in your seeking, because of Who you are seeking from!