if anyone says seven times morning and evening; “Allah sufficeth me: there is no god but He; on him is my trust- he, the Lord of the Throne (of glory) Supreme”, Allah will be sufficient for him against anything which grieves him, whether he is true or false in (repeating) them.
Sunan Abi Dawud Book 43, Hadith 309
← Previous Hadith A similar tradition (to No. 5061) has been transmitted by Muslim ibn al-Harith ibn Muslim at-Tamimi on the authority of his father from the Prophet (ﷺ) through a different chain of narrators, up to "protection from it".

But this version says: "before speaking to anyone". In this version Ali ibn Sahl said that his father told him.

Ali and Ibn al-Musaffa said: The Messenger of Allah (ﷺ) sent us on an expedition. When we reached the place of attack, I galloped my horse and outstripped my companions, and the people of that locality received me with a great noise.

I said to them: Say "There is no god but Allah," and you will be protected. They said this.

My companions blamed me, saying: You deprived us of the booty. When we came to the Messenger of Allah (ﷺ), they told him what I had done.

So he called me, appreciating what I had done, and said: Allah has recorded for you so and so (a reward) for every man of them.

AbdurRahman said: I forgot the reward. The Messenger of Allah (ﷺ) then said: I shall write a will for you after me. He did this and stamped it, and gave it to me, saying....He then mentioned the rest of the tradition to the same effect. Ibn al-Musaffa said: I heard al-Harith ibn Muslim ibn al-Harith at-Tamimi transmitting it from his father.

Sunan Abi Dawud Book 43, Hadith 308 Next Hadith → We went out one rainy and intensely dark night to look for the Messenger of Allah (ﷺ) to lead us in prayer, and when we found him, he asked: Have you prayed?, but I did not say anything. So he said: Say, but I did not say anything. He again said: Say, but I did not say anything. He then said: Say. So I said: What am I to say? He said: Say: "Say, He is Allah, One," and al-Mu'awwadhatan three times in the morning and evening; they will serve you for every purpose.

Sunan Abi Dawud Book 43, Hadith 310