Sahih Bukhari Volume 6, Book 65, Hadith 4596

حَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ، عَنْ إِسْرَائِيلَ، عَنْ أَبِي إِسْحَاقَ، عَنِ الْبَرَاءِ، قَالَ لَمَّا نَزَلَتْ ‏{‏لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ‏}‏ قَالَ النَّبِيُّ صلى الله عليه وسلم ‏"‏ ادْعُوا فُلاَنًا ‏"‏‏.‏ فَجَاءَهُ وَمَعَهُ الدَّوَاةُ وَاللَّوْحُ أَوِ الْكَتِفُ فَقَالَ ‏"‏ اكْتُبْ لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ وَالْمُجَاهِدُونَ فِي سَبِيلِ اللَّهِ ‏"‏‏.‏ وَخَلْفَ النَّبِيِّ صلى الله عليه وسلم ابْنُ أُمِّ مَكْتُومٍ فَقَالَ يَا رَسُولَ اللَّهِ أَنَا ضَرِيرٌ‏.‏ فَنَزَلَتْ مَكَانَهَا ‏{‏لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ غَيْرُ أُولِي الضَّرَرِ وَالْمُجَاهِدُونَ فِي سَبِيلِ اللَّهِ ‏}‏

Narrated By Al-Bara : When the Verse: "Not equal are those of the believers who sit (at home)," (4.95) was revealed, the Prophet said, "Call so-and-so." That person came to him with an ink-pot and a wooden board or a shoulder scapula bone. The Prophet said (to him), "Write: 'Not equal are those believers who sit (at home) and those who strive and fight in the Cause of Allah." Ibn Um Maktum who was sitting behind the Prophet then said, "O Allah's Apostle! I am a blind man." So there was revealed in the place of that Verse, the Verse: "Not equal are those of the believers who sit (at home) except those who are disabled (by injury, or are blind or lame etc.) and those who strive and fight in the Cause of Allah." (4.95)