"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 ﷺ did this prostration and I was (praying) behind him, and I will continue to do this prostration until I meet Abu Al-Qasim. (Using translation from Nasāʾī 968)  

صَلَّيْتُ خَلْفَ أَبِي هُرَيْرَةَ صَلَاةَ الْعِشَاءِ يَعْنِي الْعَتَمَةَ فَقَرَأَ إِذَا السَّمَاءُ انْشَقَّتْ فَسَجَدَ فِيهَا فَلَمَّا فَرَغَ قُلْتُ يَا أَبَا هُرَيْرَةَ هَذِهِ السَّجْدَةُ مَا كُنَّا نَسْجُدُهَا قَالَ «سَجَدَ بِهَا أَبُو الْقَاسِمِ ﷺ وَأَنَا خَلْفَهُ فَلَا أَزَالُ أَسْجُدُ بِهَا حَتَّى أَلْقَى أَبَا الْقَاسِمِ ﷺ»