أَخْبَرَنَا حُمَيْدُ بْنُ مَسْعَدَةَ، عَنْ سُلَيْمٍ، - وَهُوَ ابْنُ أَخْضَرَ - عَنِ التَّيْمِيِّ، قَالَ حَدَّثَنِي بَكْرُ بْنُ عَبْدِ اللَّهِ الْمُزَنِيُّ، عَنْ أَبِي رَافِعٍ، قَالَ صَلَّيْتُ خَلْفَ أَبِي هُرَيْرَةَ صَلاَةَ الْعِشَاءِ - يَعْنِي الْعَتَمَةَ - فَقَرَأَ سُورَةَ { إِذَا السَّمَاءُ انْشَقَّتْ } فَسَجَدَ فِيهَا فَلَمَّا فَرَغَ قُلْتُ يَا أَبَا هُرَيْرَةَ هَذِهِ - يَعْنِي سَجْدَةً - مَا كُنَّا نَسْجُدُهَا . قَالَ سَجَدَ بِهَا أَبُو الْقَاسِمِ صلى الله عليه وسلم وَأَنَا خَلْفَهُ فَلاَ أَزَالُ أَسْجُدُ بِهَا حَتَّى أَلْقَى أَبَا الْقَاسِمِ صلى الله عليه وسلم .
It was narrated that Abu Rafi' said: "I prayed Isha' prayer- meaning Al-'Atamah behind Abu Hurairah and he recited: 'When the heaven is split asunder' and prostrated during it. When he had finished praying, I said: 'O Abu Hurairah, (this is) a prostration that we are not used to.' He said: 'Abu Al-Qasim (PBUH) did this prostration and I was (praying) behind him, and I will continue to do this prostration until I meet Abu Al-Qasim. Translation Not Available
Book Ref: Sunan An Nisai Book 11 Hadith 968
Web Ref: Sunan An Nisai Vol 2 Book 11 Hadith 969