Sunan Abi Dawud
Sunan Abi Dawud 1408
حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا الْمُعْتَمِرُ، قَالَ سَمِعْتُ أَبِي، حَدَّثَنَا بَكْرٌ، عَنْ أَبِي رَافِعٍ، قَالَ صَلَّيْتُ مَعَ أَبِي هُرَيْرَةَ الْعَتَمَةَ فَقَرَأَ { إِذَا السَّمَاءُ انْشَقَّتْ } فَسَجَدَ فَقُلْتُ مَا هَذِهِ السَّجْدَةُ قَالَ سَجَدْتُ بِهَا خَلْفَ أَبِي الْقَاسِمِ صلى الله عليه وسلم فَلاَ أَزَالُ أَسْجُدُ بِهَا حَتَّى أَلْقَاهُ .
Musaddad narrated to us: al-Mutamir narrated to us, saying: I heard my father: Bakr narrated to us, from Abu Rafi, who said: I prayed the night prayer with Abu Hurayrah, and he recited Idha al-Samaa Inshaqqat (When the sky is split open) and prostrated. I asked: What is this prostration? He said: I prostrated at it behind Abu al-Qasim (peace and blessings be upon him), and I will continue prostrating at it until I meet him.