442
Musnad Ahmedit was narrated that Abu Salih, the freed slave of "Uthman, said: I heard "Uthman in Mina saying:
O people, I shall tell you a hadeeth that I heard from the Messenger of Allah (ﷺ) . He said: "Standing guard on the border for one day for the sake of Allah is better than one thousand ordinary days, so let a man stand on guard at the border as much as he wants.” ["Uthman] said; Have I conveyed [the message]? They said: Yes. He said: O Allah, bear witness.
Reference: Musnad Ahmad 442
Arabic/English book : Book 4, Hadith 442
Arabic/English book : Book 4, Hadith 442