Takhrij Hadith 553: "There was a beautiful woman…"

There was a beautiful woman who used to pray behind the Messenger of Allah ﷺ, and she was among the most beautiful of people. Some men would move forward so as to be in the first row in order not to see her, while others would remain behind so as to be in the last row, and when they bowed, they would look at her from beneath their armpits. Then Allah, Most High, revealed: {We know exactly those of you who come first and those who come later.}