Language:
كتاب التفسير
65  
Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))
(18)
"Not equal are those of the believers who sit (at home)..." (V.4:95)
(18)
باب {لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ وَالْمُجَاهِدُونَ فِي سَبِيلِ اللَّهِ}
Sahih al-Bukhari 4593

Narrated Al-Bara:

When the Verse:-- "Not equal are those of the believers who sit (at home)" (4.95) was revealed, Allah Apostle called for Zaid who wrote it. In the meantime Ibn Um Maktum came and complained of his blindness, so Allah revealed: "Except those who are disabled (by injury or are blind or lame..." etc.) (4.95)

حَدَّثَنَا حَفْصُ بْنُ عُمَرَ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي إِسْحَاقَ، عَنِ الْبَرَاءِ ـ رضى الله عنه ـ قَالَ لَمَّا نَزَلَتْ ‏{‏لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ‏}‏ دَعَا رَسُولُ اللَّهِ صلى الله عليه وسلم زَيْدًا فَكَتَبَهَا، فَجَاءَ ابْنُ أُمِّ مَكْتُومٍ فَشَكَا ضَرَارَتَهُ، فَأَنْزَلَ اللَّهُ ‏{‏غَيْرَ أُولِي الضَّرَرِ‏}
Reference : Sahih al-Bukhari 4593
In-book reference : Book 65, Hadith 115
USC-MSA web (English) reference : Vol. 6, Book 60, Hadith 117
  (deprecated numbering scheme)