حَدَّثَنَا سَعِيدُ بْنُ مَنْصُورٍ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ أَبِي الزِّنَادِ، عَنْ أَبِيهِ، عَنْ خَارِجَةَ بْنِ زَيْدٍ، عَنْ زَيْدِ بْنِ ثَابِتٍ، قَالَ ‏:‏ كُنْتُ إِلَى جَنْبِ رَسُولِ اللَّهِ صلى الله عليه وسلم فَغَشِيَتْهُ السَّكِينَةُ فَوَقَعَتْ فَخِذُ رَسُولِ اللَّهِ صلى الله عليه وسلم عَلَى فَخِذِي، فَمَا وَجَدْتُ ثِقَلَ شَىْءٍ أَثْقَلَ مِنْ فَخِذِ رَسُولِ اللَّهِ صلى الله عليه وسلم ثُمَّ سُرِّيَ عَنْهُ فَقَالَ ‏:‏ ‏"‏ اكْتُبْ ‏"‏ ‏.‏ فَكَتَبْتُ فِي كَتِفٍ ‏:‏ لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ وَالْمُجَاهِدُونَ فِي سَبِيلِ اللَّهِ ‏.‏ إِلَى آخِرِ الآيَةِ، فَقَامَ ابْنُ أُمِّ مَكْتُومٍ - وَكَانَ رَجُلاً أَعْمَى - لَمَّا سَمِعَ فَضِيلَةَ الْمُجَاهِدِينَ فَقَالَ ‏:‏ يَا رَسُولَ اللَّهِ فَكَيْفَ بِمَنْ لاَ يَسْتَطِيعُ الْجِهَادَ مِنَ الْمُؤْمِنِينَ فَلَمَّا قَضَى كَلاَمَهُ غَشِيَتْ رَسُولَ اللَّهِ صلى الله عليه وسلم السَّكِينَةُ فَوَقَعَتْ فَخِذُهُ عَلَى فَخِذِي وَوَجَدْتُ مِنْ ثِقَلِهَا فِي الْمَرَّةِ الثَّانِيَةِ كَمَا وَجَدْتُ فِي الْمَرَّةِ الأُولَى ثُمَّ سُرِّيَ عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم فَقَالَ ‏:‏ ‏"‏ اقْرَأْ يَا زَيْدُ ‏"‏ ‏.‏ فَقَرَأْتُ ‏‏{‏ لاَ يَسْتَوِي الْقَاعِدُونَ مِنَ الْمُؤْمِنِينَ ‏}‏ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏‏{‏ غَيْرُ أُولِي الضَّرَرِ ‏}‏ الآيَةَ كُلَّهَا ‏.‏ قَالَ زَيْدٌ ‏:‏ فَأَنْزَلَهَا اللَّهُ وَحْدَهَا فَأَلْحَقْتُهَا، وَالَّذِي نَفْسِي بِيَدِهِ لَكَأَنِّي أَنْظُرُ إِلَى مُلْحَقِهَا عِنْدَ صَدْعٍ فِي كَتِفٍ ‏.‏

Zaid bin Thabit said: "I was beside the Messenger of Allah (ﷺ) and tranquility overcame him, so the thigh of the Messenger of Allah (ﷺ) fell upon my thigh, and I did not find the weight of anything heavier than the thigh of the Messenger of Allah (ﷺ). Then it was lifted from him, and he said: 'Write.' So I wrote on a shoulder-blade:

Not equal are those believers who sit (at home) and those who strive in the way of Allah

to the end of the verse. Then Ibn Umm Maktum—and he was a blind man—stood up when he heard the virtue of the mujahidin, and said: 'O Messenger of Allah! How about those of the believers who are unable to fight?' When he finished his speech, tranquility overcame the Messenger of Allah (ﷺ) and it fell upon my thigh, and I felt from its weight in the second time just as I felt in the first time. Then tranquility was lifted from the Messenger of Allah (ﷺ), and he said: 'Read, O Zaid.' So I read:

Not equal are those believers who sit (at home)

and the Messenger of Allah (ﷺ) said:

other than those who have a (disabling) hurt

to the end of the verse. Zaid said: 'Then Allah revealed it by Himself, and I appended it. By Him in Whose Hand is my soul, it is as if I am looking at its joint near a crack in the shoulder-blade.'"