Anas said that he was ten years old when the Messenger of Allah (ﷺ) came to Madina. He said, "My mothers decided that I would serve him and I served him for ten years. He died when I was twenty. I am the person who knows best about the business of the veil. The first instance that was revealed occurred when the Messenger of Allah (ﷺ) built a room for Zaynab bint Jahsh. He celebrated the
wedding there, invited the people who came, ate and then left. A group remained with the Prophet, may Allah bless him and grant him peace. They stayed for a long time and then the Prophet went out and I went out hoping that they would leave. He walked and I walked with him until he came to the threshold of 'A'isha's room. Then, thinking that they would have left, he returned and I returned with him. He went to Zaynab but they were still sitting there. He left again and I left with him until he once more reached the threshold of 'A'isha's room. When he thought that they would have gone, he went back again and I went back with him. This time they had indeed left. The Prophet (ﷺ) then put up a curtain between me and him, and the veil was revealed."