أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدِ بْنِ عَبْدِ الرَّحْمَنِ، قَالَ حَدَّثَنَا سُفْيَانُ، قَالَ حَدَّثَنِي إِسْحَاقُ بْنُ عَبْدِ اللَّهِ، قَالَ سَمِعْتُ أَنَسًا، - رضى الله عنه - قَالَ أَتَانَا رَسُولُ اللَّهِ صلى الله عليه وسلم فِي بَيْتِنَا فَصَلَّيْتُ أَنَا وَيَتِيمٌ لَنَا خَلْفَهُ وَصَلَّتْ أُمُّ سُلَيْمٍ خَلْفَنَا ‏.‏

It was narrated that Ibn Abbas said

"There was a woman who used to pray behind the Messenger of Allah (ﷺ) who was beautiful, one of the most beautiful of people. Some of the people used to go to the front row to avoid seeing her, and some used to go tothe back row so that when they bowed they could see her from beneath their armpits. Then Allah revealed the words: 'To Us areknown those of you who hasten forward and those who lag behind."