Arabic (Original)
حَدَّثَنَا سُفْيَانُ عَنِ الزُّهْرِيِّ عَنْ أَبِي سَلَمَةَ عَنْ أَبِي هُرَيْرَةَ يَبْلُغُ بِهِ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَأْتِي أَحَدَكُمْ الشَّيْطَانُ وَهُوَ فِي صَلَاتِهِ فَيَلْبِسُ عَلَيْهِ حَتَّى لَا يَدْرِيَ كَمْ صَلَّى فَمَنْ وَجَدَ مِنْ ذَلِكَ شَيْئًا فَلْيَسْجُدْ سَجْدَتَيْنِ وَهُوَ جَالِسٌ.
English Translation
The Prophet (peace be upon him) said: 'The Shaytan comes to one of you during prayer and confuses him until he does not know how many rak'ahs he has prayed. If any of you experiences that, let him perform two prostrations while sitting.'