" Those who sit (at home) from among the believers and those who go out for Jihad in the way of Allah are not aqual" (iv. 95). (He said that) the Messenger of Allah ﷺ ordered Zaid (to write the verse). He brought a shoulder-blade (of a slaughtered camel) and inscribed it (the verse) thereon. The son of Umm Maktum complained of his blindness to the Prophet ﷺ. (At this) descended the revelation:" Those of the believers who sit (at home) without any trouble (illness, incapacity, disability)" (iv. 95). The tradition has been handed down through two other chains of transmitters.  

أَنَّهُ سَمِعَ الْبَرَاءَ يَقُولُ فِي هَذِهِ الآيَةِ لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ وَالْمُجَاهِدُونَ فِي سَبِيلِ اللَّهِ فَأَمَرَ رَسُولُ اللَّهِ ﷺ زَيْدًا فَجَاءَ بِكَتِفٍ يَكْتُبُهَا فَشَكَا إِلَيْهِ ابْنُ أُمِّ مَكْتُومٍ ضَرَارَتَهُ فَنَزَلَتْ { لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ غَيْرُ أُولِي الضَّرَرِ} قَالَ شُعْبَةُ وَأَخْبَرَنِي سَعْدُ بْنُ إِبْرَاهِيمَ عَنْ رَجُلٍ عَنْ زَيْدِ بْنِ ثَابِتٍ فِي هَذِهِ الآيَةِ لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ بِمِثْلِ حَدِيثِ الْبَرَاءِ وَقَالَ ابْنُ بَشَّارٍ فِي رِوَايَتِهِ سَعْدُ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنْ رَجُلٍ عَنْ زَيْدِ بْنِ ثَابِتٍ  

When the Qur'anic verse:" Those who sit (at home) from among mu'min" (iv. 94) was revealed, the son of Umm Maktum spoke to him (the Holy Prophet). (At this). the words:" other than those who have a trouble (illness)" were revealed.  

لَمَّا نَزَلَتْ { لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ} كَلَّمَهُ ابْنُ أُمِّ مَكْتُومٍ فَنَزَلَتْ { غَيْرُ أُولِي الضَّرَرِ}