“A woman used to perform prayer
behind the Prophet (ﷺ), and she was one of the most beautiful of
people. Some of the people used to go into the first row so that they
would not see her, and some of them used to lag behind so that they
would be in the last row, and when they bowed, they would do like
this
so that they could see her from beneath their armpits. Then
Allah
revealed: “And indeed, We know the first generations of you
who had
passed away, and indeed, We know the present generations of
you
(mankind), and also those who will some afterwards.”
concerning her matter.
Sunan Ibn Majah Book 5, Hadith 244