Sahih al-Bukhari 2785
صحيح البخاري#2785Sahihحَدَّثَنَا إِسْحَاقُ بْنُ مَنْصُورٍ، أَخْبَرَنَا عَفَّانُ، حَدَّثَنَا هَمَّامٌ، حَدَّثَنَا مُحَمَّدُ بْنُ جُحَادَةَ، قَالَ أَخْبَرَنِي أَبُو حَصِينٍ، أَنَّ ذَكْوَانَ، حَدَّثَهُ أَنَّ أَبَا هُرَيْرَةَ ـ رضى الله عنه ـ حَدَّثَهُ قَالَ جَاءَ رَجُلٌ إِلَى رَسُولِ اللَّهِ صلى الله عليه وسلم فَقَالَ دُلَّنِي عَلَى عَمَلٍ يَعْدِلُ الْجِهَادَ. قَالَ " لاَ أَجِدُهُ ـ قَالَ ـ هَلْ تَسْتَطِيعُ إِذَا خَرَجَ الْمُجَاهِدُ أَنْ تَدْخُلَ مَسْجِدَكَ فَتَقُومَ وَلاَ تَفْتُرَ وَتَصُومَ وَلاَ تُفْطِرَ ". قَالَ وَمَنْ يَسْتَطِيعُ ذَلِكَ قَالَ أَبُو هُرَيْرَةَ إِنَّ فَرَسَ الْمُجَاهِدِ لَيَسْتَنُّ فِي طِوَلِهِ فَيُكْتَبُ لَهُ حَسَنَاتٍ.
Narrated Abu Huraira:A man came to Allah's Messenger (ﷺ) and said, "Instruct me as to such a deed as equals Jihad (in reward)." He replied, "I do not find such a deed." Then he added, "Can you, while the Muslim fighter is in the battle-field, enter your mosque to perform prayers without cease and fast and never break your fast?" The man said, "But who can do that?" Abu Huraira added, "The Mujahid (i.e. Muslim fighter) is rewarded even for the footsteps of his horse while it wanders about (for grazing) tied in a long rope
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 56:4