سنن النسائي

It was narrated that 'Uqbah bin 'Amir Al-Juhani said: "While I was leading the Messenger of Allah (ﷺ) [SAW] 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.'"