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كتاب الجهاد والسير
56  
Fighting for the Cause of Allah (Jihaad)
(31)
Chapter: The Statement of Allah Aza wa'jal: "Not equal are those of the believers who sit (at home),..."
(31)
بَابُ قَوْلِ اللَّهِ تَعَالَى: {لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ غَيْرُ أُولِي الضَّرَرِ وَالْمُجَاهِدُونَ فِي سَبِيلِ اللَّهِ بِأَمْوَالِهِمْ وَأَنْفُسِهِمْ فَضَّلَ اللَّهُ الْمُجَاهِدِينَ بِأَمْوَالِهِمْ وَأَنْفُسِهِمْ عَلَى الْقَاعِدِينَ دَرَجَةً وَكُلاًّ وَعَدَ اللَّهُ الْحُسْنَى وَفَضَّلَ اللَّهُ الْمُجَاهِدِينَ عَلَى الْقَاعِدِينَ} إِلَى قَوْلِهِ: {غَفُورًا رَحِيمًا}
Sahih al-Bukhari 2831

Narrated Al-Bara:

When the Divine Inspiration: "Those of the believers who sit (at home), was revealed the Prophet (ﷺ) sent for Zaid (bin Thabit) who came with a shoulder-blade and wrote on it. Ibn Um-Maktum complained about his blindness and on that the following revelation came: "Not equal are those believers who sit (at home) except those who are disabled (by injury, or are blind or lame etc.) and those who strive hard and fight in the Way of Allah with their wealth and lives)." (4.95)

حَدَّثَنَا أَبُو الْوَلِيدِ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي إِسْحَاقَ، قَالَ سَمِعْتُ الْبَرَاءَ ـ رضى الله عنه ـ يَقُولُ لَمَّا نَزَلَتْ ‏{‏لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ‏}‏ دَعَا رَسُولُ اللَّهِ صلى الله عليه وسلم زَيْدًا، فَجَاءَ بِكَتِفٍ فَكَتَبَهَا، وَشَكَا ابْنُ أُمِّ مَكْتُومٍ ضَرَارَتَهُ فَنَزَلَتْ ‏{‏لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ غَيْرُ أُولِي الضَّرَرِ ‏}‏‏.‏
Reference : Sahih al-Bukhari 2831
In-book reference : Book 56, Hadith 47
USC-MSA web (English) reference : Vol. 4, Book 52, Hadith 84
  (deprecated numbering scheme)