Sunan al-Nasa'i The Book of Jihad Asad bin Musa - Asad al-Sunnah أسد بن موسى بن إبراهيم - أسد السنة Baqiyya bin al-Walid bin Sa'aid بقية بن الوليد بن صائد Lqman bin 'Amir al-Wsaby لقمان بن عامر الوصابي “Abu Salih, the freed slave of ‘Uthman, said: ‘I heard ‘Uthman bin ‘Affan say: I heard the Messenger of Allah (ﷺ) 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.'” https://parallelquran.com/hadith/sunan-al-nasai-3175/