سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 1196
The Book of Forgetfulness (In Prayer)
Stern warning against turning around when praying
أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ، قَالَ حَدَّثَنَا زَائِدَةُ، عَنْ أَشْعَثَ بْنِ أَبِي الشَّعْثَاءِ، عَنْ أَبِيهِ، عَنْ مَسْرُوقٍ، عَنْ عَائِشَةَ، - رضى الله عنها - قَالَتْ سَأَلْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم عَنْ الاِلْتِفَاتِ فِي الصَّلاَةِ فَقَالَ اخْتِلاَسٌ يَخْتَلِسُهُ الشَّيْطَانُ مِنَ الصَّلاَةِ .
It was narrated that 'Aishah, may Allah (SWT) be pleased with her, said: "I asked the Messenger of Allah (ﷺ) about looking here and there during prayer. He said: 'That is something that the Shaitan snatches from one's prayer.'"
Sunan an-Nasa'i, 1196Sahih (Darussalam)