It is narrated from Hazrat Abi that he asked Hazrat Sa’d bin Abi Waqqas,“What prevents you from fighting?”He replied,“Nothing prevents me until you give me such a sword that can distinguish between a believer and a disbeliever.”(Hazrat Sa’d bin Abi Waqqas used to keep himself separate from tribulations and remained apart during all the events of Jamal, Siffin, Taym, and the martyrdom of Hazrat Uthman.)