Sayyidina Abu Hurayrah reported that someone asked, ‘0 Messenger of Allah, which deed is equivalent to jihad?’ He said, “You (people) are incapable of that,” The question was repeated twice or thrice and he said every time, “You are incapable of that,” The third time, he said, “The example of a warr.or in Allah’s cause is like one who lasts and stands in salah and does not allow any shortcoming to mar his salah and his fast till the warrior returns from (jihad in) Allah’s cause.”
[Muslim 1877]