The Book of Leading the Prayer (Al-Imamah)
10/21. Chapter:
Where an Imam should stand when there is a boy and a woman with him
Sunan an-Nasai
أَخْبَرَنَا مُحَمَّدُ بْنُ إِسْمَاعِيلَ بْنِ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا حَجَّاجٌ، قَالَ قَالَ ابْنُ جُرَيْجٍ أَخْبَرَنِي زِيَادٌ، أَنَّ قَزَعَةَ، مَوْلًى لِعَبْدِ قَيْسٍ أَخْبَرَهُ أَنَّهُ، سَمِعَ عِكْرِمَةَ، مَوْلَى ابْنِ عَبَّاسٍ قَالَ قَالَ ابْنُ عَبَّاسٍ صَلَّيْتُ إِلَى جَنْبِ النَّبِيِّ صلى الله عليه وسلم وَعَائِشَةُ خَلْفَنَا تُصَلِّي مَعَنَا وَأَنَا إِلَى جَنْبِ النَّبِيِّ صلى الله عليه وسلم أُصَلِّي مَعَهُ .
It was narrated that Ibn 'Abbas said: "I prayed beside the Prophet (ﷺ) and Ayesha was behind us praying with us, and I was beside the Prophet (ﷺ) praying with him."
Reference : Sunan an-Nasa'i 804In-book reference : Book 10, Hadith 28English translation : Vol. 1, Book 10, Hadith 805