"I was with the Messenger of Allah . I drew close to him and he said: 'Say.' I said: 'What should I say?' He said: 'Say.' I said: 'What should I say?' He said: 'Say: I seek refuge with (Allah) the Lord of the daybreak...' until he finished (the Surah), then he said: 'Say: I seek refuge with (Allah) the Lord of mankind...' until he finished it. Then he said: 'The people cannot seek refuge with Allah by means of anything better than these two.'"
Sunan an-Nasa'i Book 50, Hadith 2
← Previous Hadith "It was raining and dark, and we were waiting for the Messenger of Allah came out to lead us in prayer and he said: 'Say.' I said: 'What should I say?' He said: 'Say: He is Allah, (the) One and Al-Mu'awwadhatain in the evening and in the morning, three times, and that will suffice you against everything.'"

Sunan an-Nasa'i Book 50, Hadith 1 Next Hadith → "While I was leading the Messenger of Allah on his mount on a military campaign, he said: 'O 'Uqbah, say!' I listened, then he said: 'O 'Uqbah, say!' I listened, then he said it a third time. I said: 'What should I say?' He said: 'Say: He is Allah, (the) One...' and he recited the Surah to the end. Then he recited: 'Say: I seek refuge with (Allah) the Lord of the daybreak...' and I recited it with him until the end. Then he recited: 'Say: I seek refuge with (Allah) the Lord of mankind...' and I recited it with him until the end. Then he said: 'No one ever sought refuge (with Allah) by means of anything like them.'"

Sunan an-Nasa'i Book 50, Hadith 3