مسند أحمد

It was narrated from Abu Salih, the freed slave of `Uthman (رضي الله عنه), that `Uthman (رضي الله عنه.) said: O people, move on in the middle of the day, for I am moving on in the middle of the day. So the people moved on in the middle of the day. Then he said: O people, I shall tell you a hadith of which I have not spoken since I heard it from the Messenger of Allah (ﷺ) until this day. The Messenger of Allah (ﷺ), said: `Guarding the border for one day for the sake of Allah is better than a thousand other days, so let a man guard the border as much as he wants.` Have I conveyed the message to you? They said: Yes. He said. O Allah, bear witness.