It was narrated from Zurah bin Mabad: "Abu Salih, the freed slave of Uthman, said: I heard Uthman bin Affan (RA) say: I heard the Messenger of Allah (صلی اللہ علیہ وسلم) say: Ribat (guarding the frontier) for one day in the cause of Allah is better in rank than a thousand days spent within the residence.