Salman al-Fairisi told that he heard God’s Messenger say, “Being stationed for a day and a night on the frontier in God’s path is better than fasting a month and spending its nights in prayer. If one dies he will be rewarded for the deeds he was doing, he will be given his provision, and will be safe from him who tests him.”* * Al-fattan. There is some doubt as to the reference here. It may be the devil, this name being used because he tempts people to sin; or it may mean the one who examines men in the grave. Munkar and Nakir are called fattana'l-qabr, the two who test men in the grave. Muslim transmitted it.