Prophetic commentry on Al-Quran

When Allah's Apostle married  Zainab bint jahsh, he made the people eat meat and bread to their fill(by 

giving a walima banquet). Then he went out to the dwelling places of the mothers of the believers(his wives)

, as he used to do in the morning of his marriage ...He would greet them and invoke good on them ,and 

they(too) would return his greeting and invoke good on him. When he returned to his house,he found two 

men taking to each other ; and when he saw them , he went out his house again .When those two men saw

Allah's Apostle:  going out of his house ,they quickly got up(and departed).I do not remember whether I

informed him of their departure or he was informed (by somebody else).So he returned ,and when he

 entered the house,he lowerd the curtain between me And him .Then the verse of Al-HIJAB was revealed..

                                       Narrated by Anas, sahih Bukhari 60:317