Sahl bin Saad reported,

I saw Marwan bin Hakam sitting in the masjid, so I came over and sat down beside him. He told us that Zayd bin Thabit had informed him that the Messenger of Allah ﷺ dictated to him the verse "Not equal are those of the believers who remain behind and those who strive in the way of Allah" [Nisa 4:95].Zayd said, "Ibn Umm Maktum came to him while he was dictating it to me and said, 'Messenger of Allah, if I were able to take part in jihad, I would do so.' He was a blind man.Then Allah تبارك وتعالى sent down revelation to His Messenger ﷺ, whose thigh was resting on mine, and it grew so heavy upon me that I feared my thigh would be crushed. Then the state left him, and Allah عز وجل had revealed the words "except those who are disabled" [Nisa 4:95]."

Bukhari 2832

Sahih

حدثنا عبد العزيز بن عبد الله حدثنا إبراهيم بن سعد الزهري قال حدثني صالح بن كيسان عن ابن شهاب

عن سهل بن سعد الساعدي أنه قال

رأيت مروان بن الحكم جالسا في المسجد فأقبلت حتى جلست إلى جنبه فأخبرنا أن زيد بن ثابت أخبره أن رسول الله ﷺ أملى عليه {لا يستوي القاعدون من المؤمنين} {والمجاهدون في سبيل الله} قال فجاءه ابن أم مكتوم وهو يملها علي فقال يا رسول الله لو أستطيع الجهاد لجاهدت وكان رجلا أعمى فأنزل الله تبارك وتعالى على رسوله ﷺ وفخذه على فخذي فثقلت علي حتى خفت أن ترض فخذي ثم سري عنه فأنزل الله عز وجل {غير أولي الضرر}

البخاري 2832صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Jihad and expeditions
Chapter
Saying of Allah Most High, "Not equal are those believers remaining at home, other than those having a disability, and those who strive in the cause of Allah with their wealth and their lives. Allah has preferred those who strive with their wealth and their lives over those who remain behind, by a degree. And to all Allah has promised the best. But Allah has preferred those who strive over those who remain behind" to His saying, "Forgiving and Merciful"
Numbering
Darussalam 2832
Bukhari 2832