[Prealiitellg]

Sahl bin Sa`d As-Sa`di said, "I saw Marwan bin Al-Hakam sitting in the Masjid. I came and sat by his side. He told us that Zayd bin Thabit told him that Allah's Messenger dictated this Ayah to him, Not equal are those believers who sit (at home) and those who strive and fight in the Cause of Allah. Ibn Umm Maktum came to the Prophet as he was dictating that very Ayah to me. Ibn Umm Maktum said, `O Allah's Messenger! By Allah, if I had power, I would surely take part in Jihad.' He was a blind man. So Allah sent down revelation to His Messenger while his thigh was on mine and it became so heavy for me that I feared that my thigh would be broken. That ended after Allah revealed, ... except those who are disabled and those who strive and fight in the cause of Allah (Sahih Bukhari Chapter 61 No. 2677)


Can someone please explain this Hadith? If Allah (s.w.t) is All-Knowing, why did He not reveal the verse with "except those who are disabled and those who strive and fight in the cause of Allah" part without Ibn Umm Maktum's intervention? I mean, should not Allah (s.w.t) know this in his vast wisdom without having a man complaining about it?

Explanation will be highly appreciated. Thank you very much.