It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that a man came to the service of the Prophet (peace and blessings of Allah be upon him) and said, "O Messenger of Allah (peace and blessings of Allah be upon him), tell me of a deed that is equal to jihad?" The Prophet (peace and blessings of Allah be upon him) said: "I do not find any such deed. Are you able, when a mujahid goes out, to enter the mosque and remain standing in prayer without any shortcoming, and to fast continuously without breaking your fast?" He said, "I do not have the strength for that."