The Messenger of Allah said to him: "O Ibn 'Abis, shall I not tell you of the best thing with which those who seek refuge with Allah may do so?" He said: "Yes, O Messenger of Allah." He said: "Say: I seek refuge with (Allah) the Lord of the daybreak.", "Say: I seek refuge with (Allah) the Lord of mankind." - these two Surahs."
Sunan an-Nasa'i Book 50, Hadith 5
← Previous Hadith "The Messenger of Allah recited them, then he said: 'The people have never recited anything like them, or the people have never sought refuge (with Allah) by means of anything like them.'"

Sunan an-Nasa'i Book 50, Hadith 4 Next Hadith → "The Prophet said to 'Uqbah: 'Recite.' He said: 'What should I recite, O Messenger of Allah?' He said: 'Recite: 'Say: I seek refuge with (Allah) the Lord of the daybreak, from the evil of what He has created.' And he repeated it until I had learned it."

Sunan an-Nasa'i Book 50, Hadith 6