عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ حَدَّثَهُ قَالَ جَاءَ رَجُلٌ إِلَى النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ فَقَالَ يَا رَسُولَ اللَّهِ عَلِّمْنِي عَمَلًا يَعْدِلُ الْجِهَادَ قَالَ لَا أَجِدُهُ قَالَ هَلْ تَسْتَطِيعُ إِذَا خَرَجَ الْمُجَاهِدُ أَنْ تَدْخُلَ مَسْجِدًا فَتَقُومَ لَا تَفْتُرُ وَتَصُومَ لَا تُفْطِرُ قَالَ لَا أَسْتَطِيعُ قَالَ قَالَ أَبُو هُرَيْرَةَ إِنَّ فَرَسَ الْمُجَاهِدِ يَسْتَنُّ فِي طِوَلِهِ فَيُكْتَبُ لَهُ حَسَنَاتٍ
It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that a man came to the Messenger of Allah (peace and blessings be upon him) and said: O Messenger of Allah! Tell me of an action that is equal to jihad. The Prophet (peace and blessings be upon him) said: I do not find any such action. Then the Prophet (peace and blessings be upon him) said: Can you manage, when the mujahid goes out (for jihad), to enter the mosque and remain continuously in prayer without becoming weary, and to fast continuously without breaking your fast? He said: I do not have the strength for that. Sayyiduna Abu Hurairah (may Allah be pleased with him) said: When the mujahid’s horse walks within the area of its tether, even for that walking, good deeds are written for him.