Sahih al-Bukhari Book 65, Hadith 315
A banquet of bread and meat was held on the occasion of the marriage of the Prophet (ﷺ) to Zainab bint
Jahsh. I was sent to invite the people (to the banquet), and so the people started coming (in groups);
They would eat and then leave. Another batch would come, eat and leave. So I kept on inviting the
people till I found nobody to invite. Then I said, "O Allah's Prophet! I do not find anybody to invite."
He said, "Carry away the remaining food." Then a batch of three persons stayed in the house chatting.
The Prophet (ﷺ) left and went towards the dwelling place of Aisha and said, "Peace and Allah's Mercy be
on you, O the people of the house!" She replied, "Peace and the mercy of Allah be on you too. How
did you find your wife? May Allah bless you. Then he went to the dwelling places of all his other
wives and said to them the same as he said to Aisha and they said to him the same as Aisha had said to
him. Then the Prophet (ﷺ) returned and found a group of three persons still in the house chatting. The
Prophet was a very shy person, so he went out (for the second time) and went towards the dwelling
place of `Aisha. I do not remember whether I informed him that the people have gone away. So he
returned and as soon as he entered the gate, he drew the curtain between me and him, and then the
Verse of Al-Hijab was revealed.
I of all the people know best this verse of Al-Hijab. When Allah's Messenger (ﷺ) married Zainab bint Jahsh she was with him in the house and he prepared a meal and invited the people (to it). They sat down (after finishing their meal) and started chatting. So the Prophet (ﷺ) went out and then returned several times while they were still sitting and talking. So Allah revealed the Verse: 'O you who believe! Enter not the Prophet's houses until leave is given to you for a meal, (and then) not (so early as) to wait for its preparation .....ask them from behind a screen.' (33.53) So the screen was set up and the people went away.
When Allah's Messenger (ﷺ) 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 talking to each other; and when he saw them, he went out of his house again. When those two men saw Allah's Messenger (ﷺ): 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 lowered the curtain between me and him. Then the Verse of Al-Hijab was revealed.